Home / 18,491.18-25,518.85-10,535.90

Finding the Fourth Proportional to 18,491.18, 25,518.85 and 10,535.90

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Solution

The fourth proportional to 18,491.18, 25,518.85 and 10,535.90 is: 14,540.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.18 : 25,518.85 = 10,535.90 : x
  2. Step 2: Convert to fraction form
    18,491.18/25,518.85 = 10,535.90/x
  3. Step 3: Cross multiply
    18,491.18x = 25,518.85 × 10,535.90
  4. Step 4: Simplify right side
    18,491.18x = 268,863,897.78
  5. Step 5: Solve for x
    x = 268,863,897.78/18,491.18
  6. Step 6: Final answer
    x = 14,540.12

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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.