Home / 10,207.26-15,279.08-7,861.18

Finding the Fourth Proportional to 10,207.26, 15,279.08 and 7,861.18

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Solution

The fourth proportional to 10,207.26, 15,279.08 and 7,861.18 is: 11,767.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.26 : 15,279.08 = 7,861.18 : x
  2. Step 2: Convert to fraction form
    10,207.26/15,279.08 = 7,861.18/x
  3. Step 3: Cross multiply
    10,207.26x = 15,279.08 × 7,861.18
  4. Step 4: Simplify right side
    10,207.26x = 120,111,598.11
  5. Step 5: Solve for x
    x = 120,111,598.11/10,207.26
  6. Step 6: Final answer
    x = 11,767.27

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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.