Home / 17,787.72-26,663.34-6,686.66

Finding the Fourth Proportional to 17,787.72, 26,663.34 and 6,686.66

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Solution

The fourth proportional to 17,787.72, 26,663.34 and 6,686.66 is: 10,023.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,787.72 : 26,663.34 = 6,686.66 : x
  2. Step 2: Convert to fraction form
    17,787.72/26,663.34 = 6,686.66/x
  3. Step 3: Cross multiply
    17,787.72x = 26,663.34 × 6,686.66
  4. Step 4: Simplify right side
    17,787.72x = 178,288,689.04
  5. Step 5: Solve for x
    x = 178,288,689.04/17,787.72
  6. Step 6: Final answer
    x = 10,023.13

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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.