Home / 14,855.47-20,500.22-8,140.95

Finding the Fourth Proportional to 14,855.47, 20,500.22 and 8,140.95

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Solution

The fourth proportional to 14,855.47, 20,500.22 and 8,140.95 is: 11,234.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.47 : 20,500.22 = 8,140.95 : x
  2. Step 2: Convert to fraction form
    14,855.47/20,500.22 = 8,140.95/x
  3. Step 3: Cross multiply
    14,855.47x = 20,500.22 × 8,140.95
  4. Step 4: Simplify right side
    14,855.47x = 166,891,225.30
  5. Step 5: Solve for x
    x = 166,891,225.30/14,855.47
  6. Step 6: Final answer
    x = 11,234.33

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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.