Home / 18,390.19-25,378.71-10,432.24

Finding the Fourth Proportional to 18,390.19, 25,378.71 and 10,432.24

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Solution

The fourth proportional to 18,390.19, 25,378.71 and 10,432.24 is: 14,396.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.19 : 25,378.71 = 10,432.24 : x
  2. Step 2: Convert to fraction form
    18,390.19/25,378.71 = 10,432.24/x
  3. Step 3: Cross multiply
    18,390.19x = 25,378.71 × 10,432.24
  4. Step 4: Simplify right side
    18,390.19x = 264,756,793.61
  5. Step 5: Solve for x
    x = 264,756,793.61/18,390.19
  6. Step 6: Final answer
    x = 14,396.63

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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.