Home / 14,651.60-20,221.24-8,985.36

Finding the Fourth Proportional to 14,651.60, 20,221.24 and 8,985.36

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Solution

The fourth proportional to 14,651.60, 20,221.24 and 8,985.36 is: 12,401.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.60 : 20,221.24 = 8,985.36 : x
  2. Step 2: Convert to fraction form
    14,651.60/20,221.24 = 8,985.36/x
  3. Step 3: Cross multiply
    14,651.60x = 20,221.24 × 8,985.36
  4. Step 4: Simplify right side
    14,651.60x = 181,695,121.05
  5. Step 5: Solve for x
    x = 181,695,121.05/14,651.60
  6. Step 6: Final answer
    x = 12,401.04

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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.