Home / 18,468.90-25,486.10-10,511.86

Finding the Fourth Proportional to 18,468.90, 25,486.10 and 10,511.86

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Solution

The fourth proportional to 18,468.90, 25,486.10 and 10,511.86 is: 14,505.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.90 : 25,486.10 = 10,511.86 : x
  2. Step 2: Convert to fraction form
    18,468.90/25,486.10 = 10,511.86/x
  3. Step 3: Cross multiply
    18,468.90x = 25,486.10 × 10,511.86
  4. Step 4: Simplify right side
    18,468.90x = 267,906,315.15
  5. Step 5: Solve for x
    x = 267,906,315.15/18,468.90
  6. Step 6: Final answer
    x = 14,505.81

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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.