Home / 18,374.20-25,355.66-10,820.85

Finding the Fourth Proportional to 18,374.20, 25,355.66 and 10,820.85

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Solution

The fourth proportional to 18,374.20, 25,355.66 and 10,820.85 is: 14,932.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.20 : 25,355.66 = 10,820.85 : x
  2. Step 2: Convert to fraction form
    18,374.20/25,355.66 = 10,820.85/x
  3. Step 3: Cross multiply
    18,374.20x = 25,355.66 × 10,820.85
  4. Step 4: Simplify right side
    18,374.20x = 274,369,853.04
  5. Step 5: Solve for x
    x = 274,369,853.04/18,374.20
  6. Step 6: Final answer
    x = 14,932.34

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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.