Home / 18,714.86-25,830.85-12,342.61

Finding the Fourth Proportional to 18,714.86, 25,830.85 and 12,342.61

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Solution

The fourth proportional to 18,714.86, 25,830.85 and 12,342.61 is: 17,035.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714.86 : 25,830.85 = 12,342.61 : x
  2. Step 2: Convert to fraction form
    18,714.86/25,830.85 = 12,342.61/x
  3. Step 3: Cross multiply
    18,714.86x = 25,830.85 × 12,342.61
  4. Step 4: Simplify right side
    18,714.86x = 318,819,978.36
  5. Step 5: Solve for x
    x = 318,819,978.36/18,714.86
  6. Step 6: Final answer
    x = 17,035.66

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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.