Home / 18,612.18-25,668.90-11,442.24

Finding the Fourth Proportional to 18,612.18, 25,668.90 and 11,442.24

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Solution

The fourth proportional to 18,612.18, 25,668.90 and 11,442.24 is: 15,780.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.18 : 25,668.90 = 11,442.24 : x
  2. Step 2: Convert to fraction form
    18,612.18/25,668.90 = 11,442.24/x
  3. Step 3: Cross multiply
    18,612.18x = 25,668.90 × 11,442.24
  4. Step 4: Simplify right side
    18,612.18x = 293,709,714.34
  5. Step 5: Solve for x
    x = 293,709,714.34/18,612.18
  6. Step 6: Final answer
    x = 15,780.51

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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.