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Finding the Fourth Proportional to 15,010.71, 20,692.02 and 9,966.03

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Solution

The fourth proportional to 15,010.71, 20,692.02 and 9,966.03 is: 13,738.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,010.71 : 20,692.02 = 9,966.03 : x
  2. Step 2: Convert to fraction form
    15,010.71/20,692.02 = 9,966.03/x
  3. Step 3: Cross multiply
    15,010.71x = 20,692.02 × 9,966.03
  4. Step 4: Simplify right side
    15,010.71x = 206,217,292.08
  5. Step 5: Solve for x
    x = 206,217,292.08/15,010.71
  6. Step 6: Final answer
    x = 13,738.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.