Home / 8,819.56-13,225.15-5,122.95

Finding the Fourth Proportional to 8,819.56, 13,225.15 and 5,122.95

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Solution

The fourth proportional to 8,819.56, 13,225.15 and 5,122.95 is: 7,681.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.56 : 13,225.15 = 5,122.95 : x
  2. Step 2: Convert to fraction form
    8,819.56/13,225.15 = 5,122.95/x
  3. Step 3: Cross multiply
    8,819.56x = 13,225.15 × 5,122.95
  4. Step 4: Simplify right side
    8,819.56x = 67,751,782.19
  5. Step 5: Solve for x
    x = 67,751,782.19/8,819.56
  6. Step 6: Final answer
    x = 7,681.99

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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.