Home / 10,531.20-14,535.18-6,939.86

Finding the Fourth Proportional to 10,531.20, 14,535.18 and 6,939.86

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Solution

The fourth proportional to 10,531.20, 14,535.18 and 6,939.86 is: 9,578.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.20 : 14,535.18 = 6,939.86 : x
  2. Step 2: Convert to fraction form
    10,531.20/14,535.18 = 6,939.86/x
  3. Step 3: Cross multiply
    10,531.20x = 14,535.18 × 6,939.86
  4. Step 4: Simplify right side
    10,531.20x = 100,872,114.27
  5. Step 5: Solve for x
    x = 100,872,114.27/10,531.20
  6. Step 6: Final answer
    x = 9,578.41

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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.