Home / 8,076.46-11,140.48-5,554.19

Finding the Fourth Proportional to 8,076.46, 11,140.48 and 5,554.19

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Solution

The fourth proportional to 8,076.46, 11,140.48 and 5,554.19 is: 7,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.46 : 11,140.48 = 5,554.19 : x
  2. Step 2: Convert to fraction form
    8,076.46/11,140.48 = 5,554.19/x
  3. Step 3: Cross multiply
    8,076.46x = 11,140.48 × 5,554.19
  4. Step 4: Simplify right side
    8,076.46x = 61,876,342.61
  5. Step 5: Solve for x
    x = 61,876,342.61/8,076.46
  6. Step 6: Final answer
    x = 7,661.32

Related Problems

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Half scale
Find fourth proportional to 16,152.92, 22,280.96 and 11,108.38
Double scale
Find fourth proportional to 8,077.46, 11,141.86 and 5,555.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.