Home / 10,987.38-16,487.55-4,066.74

Finding the Fourth Proportional to 10,987.38, 16,487.55 and 4,066.74

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Solution

The fourth proportional to 10,987.38, 16,487.55 and 4,066.74 is: 6,102.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.38 : 16,487.55 = 4,066.74 : x
  2. Step 2: Convert to fraction form
    10,987.38/16,487.55 = 4,066.74/x
  3. Step 3: Cross multiply
    10,987.38x = 16,487.55 × 4,066.74
  4. Step 4: Simplify right side
    10,987.38x = 67,050,579.09
  5. Step 5: Solve for x
    x = 67,050,579.09/10,987.38
  6. Step 6: Final answer
    x = 6,102.51

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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.