Home / 12,589.60-18,957.80-9,325.68

Finding the Fourth Proportional to 12,589.60, 18,957.80 and 9,325.68

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Solution

The fourth proportional to 12,589.60, 18,957.80 and 9,325.68 is: 14,042.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.60 : 18,957.80 = 9,325.68 : x
  2. Step 2: Convert to fraction form
    12,589.60/18,957.80 = 9,325.68/x
  3. Step 3: Cross multiply
    12,589.60x = 18,957.80 × 9,325.68
  4. Step 4: Simplify right side
    12,589.60x = 176,794,376.30
  5. Step 5: Solve for x
    x = 176,794,376.30/12,589.60
  6. Step 6: Final answer
    x = 14,042.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.