Home / 9,001.76-13,500.62-3,158.40

Finding the Fourth Proportional to 9,001.76, 13,500.62 and 3,158.40

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Solution

The fourth proportional to 9,001.76, 13,500.62 and 3,158.40 is: 4,736.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,001.76 : 13,500.62 = 3,158.40 : x
  2. Step 2: Convert to fraction form
    9,001.76/13,500.62 = 3,158.40/x
  3. Step 3: Cross multiply
    9,001.76x = 13,500.62 × 3,158.40
  4. Step 4: Simplify right side
    9,001.76x = 42,640,358.21
  5. Step 5: Solve for x
    x = 42,640,358.21/9,001.76
  6. Step 6: Final answer
    x = 4,736.89

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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.