Home / 15,102.28-20,841.03-8,296.39

Finding the Fourth Proportional to 15,102.28, 20,841.03 and 8,296.39

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Solution

The fourth proportional to 15,102.28, 20,841.03 and 8,296.39 is: 11,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,102.28 : 20,841.03 = 8,296.39 : x
  2. Step 2: Convert to fraction form
    15,102.28/20,841.03 = 8,296.39/x
  3. Step 3: Cross multiply
    15,102.28x = 20,841.03 × 8,296.39
  4. Step 4: Simplify right side
    15,102.28x = 172,905,312.88
  5. Step 5: Solve for x
    x = 172,905,312.88/15,102.28
  6. Step 6: Final answer
    x = 11,448.95

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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.