Home / 18,714.74-25,830.68-12,342.48

Finding the Fourth Proportional to 18,714.74, 25,830.68 and 12,342.48

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Solution

The fourth proportional to 18,714.74, 25,830.68 and 12,342.48 is: 17,035.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714.74 : 25,830.68 = 12,342.48 : x
  2. Step 2: Convert to fraction form
    18,714.74/25,830.68 = 12,342.48/x
  3. Step 3: Cross multiply
    18,714.74x = 25,830.68 × 12,342.48
  4. Step 4: Simplify right side
    18,714.74x = 318,814,555.85
  5. Step 5: Solve for x
    x = 318,814,555.85/18,714.74
  6. Step 6: Final answer
    x = 17,035.48

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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.