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Finding the Fourth Proportional to 13,360.52, 20,052.88 and 7,125.76

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Solution

The fourth proportional to 13,360.52, 20,052.88 and 7,125.76 is: 10,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.52 : 20,052.88 = 7,125.76 : x
  2. Step 2: Convert to fraction form
    13,360.52/20,052.88 = 7,125.76/x
  3. Step 3: Cross multiply
    13,360.52x = 20,052.88 × 7,125.76
  4. Step 4: Simplify right side
    13,360.52x = 142,892,010.19
  5. Step 5: Solve for x
    x = 142,892,010.19/13,360.52
  6. Step 6: Final answer
    x = 10,695.09

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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.