Home / 8,726.40-13,079.36-4,099.84

Finding the Fourth Proportional to 8,726.40, 13,079.36 and 4,099.84

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Solution

The fourth proportional to 8,726.40, 13,079.36 and 4,099.84 is: 6,144.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.40 : 13,079.36 = 4,099.84 : x
  2. Step 2: Convert to fraction form
    8,726.40/13,079.36 = 4,099.84/x
  3. Step 3: Cross multiply
    8,726.40x = 13,079.36 × 4,099.84
  4. Step 4: Simplify right side
    8,726.40x = 53,623,283.30
  5. Step 5: Solve for x
    x = 53,623,283.30/8,726.40
  6. Step 6: Final answer
    x = 6,144.95

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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.