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Finding the Fourth Proportional to 12,897.60, 19,331.28 and 5,957.52

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Solution

The fourth proportional to 12,897.60, 19,331.28 and 5,957.52 is: 8,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.60 : 19,331.28 = 5,957.52 : x
  2. Step 2: Convert to fraction form
    12,897.60/19,331.28 = 5,957.52/x
  3. Step 3: Cross multiply
    12,897.60x = 19,331.28 × 5,957.52
  4. Step 4: Simplify right side
    12,897.60x = 115,166,487.23
  5. Step 5: Solve for x
    x = 115,166,487.23/12,897.60
  6. Step 6: Final answer
    x = 8,929.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.