Home / 8,726.34-13,079.99-4,287.06

Finding the Fourth Proportional to 8,726.34, 13,079.99 and 4,287.06

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Solution

The fourth proportional to 8,726.34, 13,079.99 and 4,287.06 is: 6,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.34 : 13,079.99 = 4,287.06 : x
  2. Step 2: Convert to fraction form
    8,726.34/13,079.99 = 4,287.06/x
  3. Step 3: Cross multiply
    8,726.34x = 13,079.99 × 4,287.06
  4. Step 4: Simplify right side
    8,726.34x = 56,074,701.93
  5. Step 5: Solve for x
    x = 56,074,701.93/8,726.34
  6. Step 6: Final answer
    x = 6,425.91

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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.