Home / 18,612.30-25,686.11-10,654.34

Finding the Fourth Proportional to 18,612.30, 25,686.11 and 10,654.34

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Solution

The fourth proportional to 18,612.30, 25,686.11 and 10,654.34 is: 14,703.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.30 : 25,686.11 = 10,654.34 : x
  2. Step 2: Convert to fraction form
    18,612.30/25,686.11 = 10,654.34/x
  3. Step 3: Cross multiply
    18,612.30x = 25,686.11 × 10,654.34
  4. Step 4: Simplify right side
    18,612.30x = 273,668,447.42
  5. Step 5: Solve for x
    x = 273,668,447.42/18,612.30
  6. Step 6: Final answer
    x = 14,703.63

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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.