Home / 15,418.20-23,108.13-8,018.31

Finding the Fourth Proportional to 15,418.20, 23,108.13 and 8,018.31

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Solution

The fourth proportional to 15,418.20, 23,108.13 and 8,018.31 is: 12,017.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.20 : 23,108.13 = 8,018.31 : x
  2. Step 2: Convert to fraction form
    15,418.20/23,108.13 = 8,018.31/x
  3. Step 3: Cross multiply
    15,418.20x = 23,108.13 × 8,018.31
  4. Step 4: Simplify right side
    15,418.20x = 185,288,149.86
  5. Step 5: Solve for x
    x = 185,288,149.86/15,418.20
  6. Step 6: Final answer
    x = 12,017.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.