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Finding the Fourth Proportional to 18,924, 26,115.12 and 10,540.32

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Solution

The fourth proportional to 18,924, 26,115.12 and 10,540.32 is: 14,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924 : 26,115.12 = 10,540.32 : x
  2. Step 2: Convert to fraction form
    18,924/26,115.12 = 10,540.32/x
  3. Step 3: Cross multiply
    18,924x = 26,115.12 × 10,540.32
  4. Step 4: Simplify right side
    18,924x = 275,261,721.64
  5. Step 5: Solve for x
    x = 275,261,721.64/18,924
  6. Step 6: Final answer
    x = 14,545.64

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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.