Home / 11,320.77-15,617.25-6,781.26

Finding the Fourth Proportional to 11,320.77, 15,617.25 and 6,781.26

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Solution

The fourth proportional to 11,320.77, 15,617.25 and 6,781.26 is: 9,354.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.77 : 15,617.25 = 6,781.26 : x
  2. Step 2: Convert to fraction form
    11,320.77/15,617.25 = 6,781.26/x
  3. Step 3: Cross multiply
    11,320.77x = 15,617.25 × 6,781.26
  4. Step 4: Simplify right side
    11,320.77x = 105,904,632.74
  5. Step 5: Solve for x
    x = 105,904,632.74/11,320.77
  6. Step 6: Final answer
    x = 9,354.90

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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.