Home / 18,123.86-25,029.94-12,473.20

Finding the Fourth Proportional to 18,123.86, 25,029.94 and 12,473.20

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Solution

The fourth proportional to 18,123.86, 25,029.94 and 12,473.20 is: 17,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.86 : 25,029.94 = 12,473.20 : x
  2. Step 2: Convert to fraction form
    18,123.86/25,029.94 = 12,473.20/x
  3. Step 3: Cross multiply
    18,123.86x = 25,029.94 × 12,473.20
  4. Step 4: Simplify right side
    18,123.86x = 312,203,447.61
  5. Step 5: Solve for x
    x = 312,203,447.61/18,123.86
  6. Step 6: Final answer
    x = 17,226.10

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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.