Home / 10,001.60-15,020.16-9,491.12

Finding the Fourth Proportional to 10,001.60, 15,020.16 and 9,491.12

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Solution

The fourth proportional to 10,001.60, 15,020.16 and 9,491.12 is: 14,253.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.60 : 15,020.16 = 9,491.12 : x
  2. Step 2: Convert to fraction form
    10,001.60/15,020.16 = 9,491.12/x
  3. Step 3: Cross multiply
    10,001.60x = 15,020.16 × 9,491.12
  4. Step 4: Simplify right side
    10,001.60x = 142,558,140.98
  5. Step 5: Solve for x
    x = 142,558,140.98/10,001.60
  6. Step 6: Final answer
    x = 14,253.53

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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.