Home / 18,338.08-25,306.56-9,954.72

Finding the Fourth Proportional to 18,338.08, 25,306.56 and 9,954.72

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Solution

The fourth proportional to 18,338.08, 25,306.56 and 9,954.72 is: 13,737.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.08 : 25,306.56 = 9,954.72 : x
  2. Step 2: Convert to fraction form
    18,338.08/25,306.56 = 9,954.72/x
  3. Step 3: Cross multiply
    18,338.08x = 25,306.56 × 9,954.72
  4. Step 4: Simplify right side
    18,338.08x = 251,919,718.96
  5. Step 5: Solve for x
    x = 251,919,718.96/18,338.08
  6. Step 6: Final answer
    x = 13,737.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.