Home / 10,971.20-15,136.31-6,252.75

Finding the Fourth Proportional to 10,971.20, 15,136.31 and 6,252.75

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Solution

The fourth proportional to 10,971.20, 15,136.31 and 6,252.75 is: 8,626.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.20 : 15,136.31 = 6,252.75 : x
  2. Step 2: Convert to fraction form
    10,971.20/15,136.31 = 6,252.75/x
  3. Step 3: Cross multiply
    10,971.20x = 15,136.31 × 6,252.75
  4. Step 4: Simplify right side
    10,971.20x = 94,643,531.09
  5. Step 5: Solve for x
    x = 94,643,531.09/10,971.20
  6. Step 6: Final answer
    x = 8,626.55

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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.