Home / 10,377.35-15,581.70-8,291.16

Finding the Fourth Proportional to 10,377.35, 15,581.70 and 8,291.16

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Solution

The fourth proportional to 10,377.35, 15,581.70 and 8,291.16 is: 12,449.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,377.35 : 15,581.70 = 8,291.16 : x
  2. Step 2: Convert to fraction form
    10,377.35/15,581.70 = 8,291.16/x
  3. Step 3: Cross multiply
    10,377.35x = 15,581.70 × 8,291.16
  4. Step 4: Simplify right side
    10,377.35x = 129,190,367.77
  5. Step 5: Solve for x
    x = 129,190,367.77/10,377.35
  6. Step 6: Final answer
    x = 12,449.27

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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.