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Finding the Fourth Proportional to 8,991.70, 13,428.73 and 7,532.02

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Solution

The fourth proportional to 8,991.70, 13,428.73 and 7,532.02 is: 11,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.70 : 13,428.73 = 7,532.02 : x
  2. Step 2: Convert to fraction form
    8,991.70/13,428.73 = 7,532.02/x
  3. Step 3: Cross multiply
    8,991.70x = 13,428.73 × 7,532.02
  4. Step 4: Simplify right side
    8,991.70x = 101,145,462.93
  5. Step 5: Solve for x
    x = 101,145,462.93/8,991.70
  6. Step 6: Final answer
    x = 11,248.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.