Home / 14,543.86-20,070.43-8,170.46

Finding the Fourth Proportional to 14,543.86, 20,070.43 and 8,170.46

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Solution

The fourth proportional to 14,543.86, 20,070.43 and 8,170.46 is: 11,275.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,543.86 : 20,070.43 = 8,170.46 : x
  2. Step 2: Convert to fraction form
    14,543.86/20,070.43 = 8,170.46/x
  3. Step 3: Cross multiply
    14,543.86x = 20,070.43 × 8,170.46
  4. Step 4: Simplify right side
    14,543.86x = 163,984,645.50
  5. Step 5: Solve for x
    x = 163,984,645.50/14,543.86
  6. Step 6: Final answer
    x = 11,275.18

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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.