Home / 14,937.28-20,613.64-8,222.88

Finding the Fourth Proportional to 14,937.28, 20,613.64 and 8,222.88

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Solution

The fourth proportional to 14,937.28, 20,613.64 and 8,222.88 is: 11,347.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,937.28 : 20,613.64 = 8,222.88 : x
  2. Step 2: Convert to fraction form
    14,937.28/20,613.64 = 8,222.88/x
  3. Step 3: Cross multiply
    14,937.28x = 20,613.64 × 8,222.88
  4. Step 4: Simplify right side
    14,937.28x = 169,503,488.08
  5. Step 5: Solve for x
    x = 169,503,488.08/14,937.28
  6. Step 6: Final answer
    x = 11,347.68

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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.