Home / 10,370.70-15,543.09-8,170.74

Finding the Fourth Proportional to 10,370.70, 15,543.09 and 8,170.74

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Solution

The fourth proportional to 10,370.70, 15,543.09 and 8,170.74 is: 12,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,370.70 : 15,543.09 = 8,170.74 : x
  2. Step 2: Convert to fraction form
    10,370.70/15,543.09 = 8,170.74/x
  3. Step 3: Cross multiply
    10,370.70x = 15,543.09 × 8,170.74
  4. Step 4: Simplify right side
    10,370.70x = 126,998,547.19
  5. Step 5: Solve for x
    x = 126,998,547.19/10,370.70
  6. Step 6: Final answer
    x = 12,245.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.