Home / 18,587.38-25,647.27-10,520.99

Finding the Fourth Proportional to 18,587.38, 25,647.27 and 10,520.99

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Solution

The fourth proportional to 18,587.38, 25,647.27 and 10,520.99 is: 14,517.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.38 : 25,647.27 = 10,520.99 : x
  2. Step 2: Convert to fraction form
    18,587.38/25,647.27 = 10,520.99/x
  3. Step 3: Cross multiply
    18,587.38x = 25,647.27 × 10,520.99
  4. Step 4: Simplify right side
    18,587.38x = 269,834,671.20
  5. Step 5: Solve for x
    x = 269,834,671.20/18,587.38
  6. Step 6: Final answer
    x = 14,517.09

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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.