Home / 14,543.74-20,070.86-8,171.46

Finding the Fourth Proportional to 14,543.74, 20,070.86 and 8,171.46

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Solution

The fourth proportional to 14,543.74, 20,070.86 and 8,171.46 is: 11,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,543.74 : 20,070.86 = 8,171.46 : x
  2. Step 2: Convert to fraction form
    14,543.74/20,070.86 = 8,171.46/x
  3. Step 3: Cross multiply
    14,543.74x = 20,070.86 × 8,171.46
  4. Step 4: Simplify right side
    14,543.74x = 164,008,229.66
  5. Step 5: Solve for x
    x = 164,008,229.66/14,543.74
  6. Step 6: Final answer
    x = 11,276.90

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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.