Home / 14,695.42-20,279.28-8,407.39

Finding the Fourth Proportional to 14,695.42, 20,279.28 and 8,407.39

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Solution

The fourth proportional to 14,695.42, 20,279.28 and 8,407.39 is: 11,601.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,695.42 : 20,279.28 = 8,407.39 : x
  2. Step 2: Convert to fraction form
    14,695.42/20,279.28 = 8,407.39/x
  3. Step 3: Cross multiply
    14,695.42x = 20,279.28 × 8,407.39
  4. Step 4: Simplify right side
    14,695.42x = 170,495,815.88
  5. Step 5: Solve for x
    x = 170,495,815.88/14,695.42
  6. Step 6: Final answer
    x = 11,601.97

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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.