Home / 11,385.16-15,711.59-6,349.59

Finding the Fourth Proportional to 11,385.16, 15,711.59 and 6,349.59

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Solution

The fourth proportional to 11,385.16, 15,711.59 and 6,349.59 is: 8,762.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.16 : 15,711.59 = 6,349.59 : x
  2. Step 2: Convert to fraction form
    11,385.16/15,711.59 = 6,349.59/x
  3. Step 3: Cross multiply
    11,385.16x = 15,711.59 × 6,349.59
  4. Step 4: Simplify right side
    11,385.16x = 99,762,123.00
  5. Step 5: Solve for x
    x = 99,762,123.00/11,385.16
  6. Step 6: Final answer
    x = 8,762.47

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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.