Home / 8,055.90-11,116.35-6,381.54

Finding the Fourth Proportional to 8,055.90, 11,116.35 and 6,381.54

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Solution

The fourth proportional to 8,055.90, 11,116.35 and 6,381.54 is: 8,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,055.90 : 11,116.35 = 6,381.54 : x
  2. Step 2: Convert to fraction form
    8,055.90/11,116.35 = 6,381.54/x
  3. Step 3: Cross multiply
    8,055.90x = 11,116.35 × 6,381.54
  4. Step 4: Simplify right side
    8,055.90x = 70,939,432.18
  5. Step 5: Solve for x
    x = 70,939,432.18/8,055.90
  6. Step 6: Final answer
    x = 8,805.90

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Half scale
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Double scale
Find fourth proportional to 8,056.90, 11,117.73 and 6,382.54
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.