Home / 8,139.72-11,232.63-4,554.66

Finding the Fourth Proportional to 8,139.72, 11,232.63 and 4,554.66

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Solution

The fourth proportional to 8,139.72, 11,232.63 and 4,554.66 is: 6,285.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.72 : 11,232.63 = 4,554.66 : x
  2. Step 2: Convert to fraction form
    8,139.72/11,232.63 = 4,554.66/x
  3. Step 3: Cross multiply
    8,139.72x = 11,232.63 × 4,554.66
  4. Step 4: Simplify right side
    8,139.72x = 51,160,810.56
  5. Step 5: Solve for x
    x = 51,160,810.56/8,139.72
  6. Step 6: Final answer
    x = 6,285.33

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Double scale
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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.