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Finding the Fourth Proportional to 12,637.66, 17,439.90 and 7,335.58

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Solution

The fourth proportional to 12,637.66, 17,439.90 and 7,335.58 is: 10,123.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.66 : 17,439.90 = 7,335.58 : x
  2. Step 2: Convert to fraction form
    12,637.66/17,439.90 = 7,335.58/x
  3. Step 3: Cross multiply
    12,637.66x = 17,439.90 × 7,335.58
  4. Step 4: Simplify right side
    12,637.66x = 127,931,781.64
  5. Step 5: Solve for x
    x = 127,931,781.64/12,637.66
  6. Step 6: Final answer
    x = 10,123.06

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