Home / 10,781.86-16,169.55-4,206.28

Finding the Fourth Proportional to 10,781.86, 16,169.55 and 4,206.28

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Solution

The fourth proportional to 10,781.86, 16,169.55 and 4,206.28 is: 6,308.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.86 : 16,169.55 = 4,206.28 : x
  2. Step 2: Convert to fraction form
    10,781.86/16,169.55 = 4,206.28/x
  3. Step 3: Cross multiply
    10,781.86x = 16,169.55 × 4,206.28
  4. Step 4: Simplify right side
    10,781.86x = 68,013,654.77
  5. Step 5: Solve for x
    x = 68,013,654.77/10,781.86
  6. Step 6: Final answer
    x = 6,308.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.