Home / 8,726.91-12,047.58-5,909.17

Finding the Fourth Proportional to 8,726.91, 12,047.58 and 5,909.17

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Solution

The fourth proportional to 8,726.91, 12,047.58 and 5,909.17 is: 8,157.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.91 : 12,047.58 = 5,909.17 : x
  2. Step 2: Convert to fraction form
    8,726.91/12,047.58 = 5,909.17/x
  3. Step 3: Cross multiply
    8,726.91x = 12,047.58 × 5,909.17
  4. Step 4: Simplify right side
    8,726.91x = 71,191,198.31
  5. Step 5: Solve for x
    x = 71,191,198.31/8,726.91
  6. Step 6: Final answer
    x = 8,157.66

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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.