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Finding the Fourth Proportional to 14,752.80, 22,135.20 and 6,434.40

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Solution

The fourth proportional to 14,752.80, 22,135.20 and 6,434.40 is: 9,654.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,752.80 : 22,135.20 = 6,434.40 : x
  2. Step 2: Convert to fraction form
    14,752.80/22,135.20 = 6,434.40/x
  3. Step 3: Cross multiply
    14,752.80x = 22,135.20 × 6,434.40
  4. Step 4: Simplify right side
    14,752.80x = 142,426,730.88
  5. Step 5: Solve for x
    x = 142,426,730.88/14,752.80
  6. Step 6: Final answer
    x = 9,654.22

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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.