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Finding the Fourth Proportional to 17,888.64, 24,687.08 and 9,930.87

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Solution

The fourth proportional to 17,888.64, 24,687.08 and 9,930.87 is: 13,705.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,888.64 : 24,687.08 = 9,930.87 : x
  2. Step 2: Convert to fraction form
    17,888.64/24,687.08 = 9,930.87/x
  3. Step 3: Cross multiply
    17,888.64x = 24,687.08 × 9,930.87
  4. Step 4: Simplify right side
    17,888.64x = 245,164,132.51
  5. Step 5: Solve for x
    x = 245,164,132.51/17,888.64
  6. Step 6: Final answer
    x = 13,705.02

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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.