Home / 10,971.38-15,140.13-6,257.18

Finding the Fourth Proportional to 10,971.38, 15,140.13 and 6,257.18

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Solution

The fourth proportional to 10,971.38, 15,140.13 and 6,257.18 is: 8,634.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.38 : 15,140.13 = 6,257.18 : x
  2. Step 2: Convert to fraction form
    10,971.38/15,140.13 = 6,257.18/x
  3. Step 3: Cross multiply
    10,971.38x = 15,140.13 × 6,257.18
  4. Step 4: Simplify right side
    10,971.38x = 94,734,518.63
  5. Step 5: Solve for x
    x = 94,734,518.63/10,971.38
  6. Step 6: Final answer
    x = 8,634.69

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Double scale
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Similar ratio
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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.