Home / 12,553.60-18,830.40-7,304.80

Finding the Fourth Proportional to 12,553.60, 18,830.40 and 7,304.80

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Solution

The fourth proportional to 12,553.60, 18,830.40 and 7,304.80 is: 10,957.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.60 : 18,830.40 = 7,304.80 : x
  2. Step 2: Convert to fraction form
    12,553.60/18,830.40 = 7,304.80/x
  3. Step 3: Cross multiply
    12,553.60x = 18,830.40 × 7,304.80
  4. Step 4: Simplify right side
    12,553.60x = 137,552,305.92
  5. Step 5: Solve for x
    x = 137,552,305.92/12,553.60
  6. Step 6: Final answer
    x = 10,957.20

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1.5x scale

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.