Home / 14,543.72-20,070.12-8,255.68

Finding the Fourth Proportional to 14,543.72, 20,070.12 and 8,255.68

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Solution

The fourth proportional to 14,543.72, 20,070.12 and 8,255.68 is: 11,392.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,543.72 : 20,070.12 = 8,255.68 : x
  2. Step 2: Convert to fraction form
    14,543.72/20,070.12 = 8,255.68/x
  3. Step 3: Cross multiply
    14,543.72x = 20,070.12 × 8,255.68
  4. Step 4: Simplify right side
    14,543.72x = 165,692,488.28
  5. Step 5: Solve for x
    x = 165,692,488.28/14,543.72
  6. Step 6: Final answer
    x = 11,392.72

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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.