Home / 18,878.47-26,052.85-10,380.15

Finding the Fourth Proportional to 18,878.47, 26,052.85 and 10,380.15

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Solution

The fourth proportional to 18,878.47, 26,052.85 and 10,380.15 is: 14,324.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.47 : 26,052.85 = 10,380.15 : x
  2. Step 2: Convert to fraction form
    18,878.47/26,052.85 = 10,380.15/x
  3. Step 3: Cross multiply
    18,878.47x = 26,052.85 × 10,380.15
  4. Step 4: Simplify right side
    18,878.47x = 270,432,490.93
  5. Step 5: Solve for x
    x = 270,432,490.93/18,878.47
  6. Step 6: Final answer
    x = 14,324.92

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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.