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Finding the Fourth Proportional to 13,314.76, 19,975.02 and 6,654.88

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Solution

The fourth proportional to 13,314.76, 19,975.02 and 6,654.88 is: 9,983.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.76 : 19,975.02 = 6,654.88 : x
  2. Step 2: Convert to fraction form
    13,314.76/19,975.02 = 6,654.88/x
  3. Step 3: Cross multiply
    13,314.76x = 19,975.02 × 6,654.88
  4. Step 4: Simplify right side
    13,314.76x = 132,931,361.10
  5. Step 5: Solve for x
    x = 132,931,361.10/13,314.76
  6. Step 6: Final answer
    x = 9,983.76

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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.