Home / 15,257.25-21,057.51-9,124.55

Finding the Fourth Proportional to 15,257.25, 21,057.51 and 9,124.55

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Solution

The fourth proportional to 15,257.25, 21,057.51 and 9,124.55 is: 12,593.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,257.25 : 21,057.51 = 9,124.55 : x
  2. Step 2: Convert to fraction form
    15,257.25/21,057.51 = 9,124.55/x
  3. Step 3: Cross multiply
    15,257.25x = 21,057.51 × 9,124.55
  4. Step 4: Simplify right side
    15,257.25x = 192,140,197.58
  5. Step 5: Solve for x
    x = 192,140,197.58/15,257.25
  6. Step 6: Final answer
    x = 12,593.37

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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.