Home / 18,339.18-25,306.22-10,380.02

Finding the Fourth Proportional to 18,339.18, 25,306.22 and 10,380.02

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Solution

The fourth proportional to 18,339.18, 25,306.22 and 10,380.02 is: 14,323.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,339.18 : 25,306.22 = 10,380.02 : x
  2. Step 2: Convert to fraction form
    18,339.18/25,306.22 = 10,380.02/x
  3. Step 3: Cross multiply
    18,339.18x = 25,306.22 × 10,380.02
  4. Step 4: Simplify right side
    18,339.18x = 262,679,069.72
  5. Step 5: Solve for x
    x = 262,679,069.72/18,339.18
  6. Step 6: Final answer
    x = 14,323.38

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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.