Home / 15,022.76-20,726.34-8,729.96

Finding the Fourth Proportional to 15,022.76, 20,726.34 and 8,729.96

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Solution

The fourth proportional to 15,022.76, 20,726.34 and 8,729.96 is: 12,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,022.76 : 20,726.34 = 8,729.96 : x
  2. Step 2: Convert to fraction form
    15,022.76/20,726.34 = 8,729.96/x
  3. Step 3: Cross multiply
    15,022.76x = 20,726.34 × 8,729.96
  4. Step 4: Simplify right side
    15,022.76x = 180,940,119.15
  5. Step 5: Solve for x
    x = 180,940,119.15/15,022.76
  6. Step 6: Final answer
    x = 12,044.40

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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.