Home / 14,251.60-21,355.80-9,629.20

Finding the Fourth Proportional to 14,251.60, 21,355.80 and 9,629.20

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Solution

The fourth proportional to 14,251.60, 21,355.80 and 9,629.20 is: 14,429.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,251.60 : 21,355.80 = 9,629.20 : x
  2. Step 2: Convert to fraction form
    14,251.60/21,355.80 = 9,629.20/x
  3. Step 3: Cross multiply
    14,251.60x = 21,355.80 × 9,629.20
  4. Step 4: Simplify right side
    14,251.60x = 205,639,269.36
  5. Step 5: Solve for x
    x = 205,639,269.36/14,251.60
  6. Step 6: Final answer
    x = 14,429.21

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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.