Home / 15,278.17-22,915.23-6,949.21

Finding the Fourth Proportional to 15,278.17, 22,915.23 and 6,949.21

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Solution

The fourth proportional to 15,278.17, 22,915.23 and 6,949.21 is: 10,422.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278.17 : 22,915.23 = 6,949.21 : x
  2. Step 2: Convert to fraction form
    15,278.17/22,915.23 = 6,949.21/x
  3. Step 3: Cross multiply
    15,278.17x = 22,915.23 × 6,949.21
  4. Step 4: Simplify right side
    15,278.17x = 159,242,745.47
  5. Step 5: Solve for x
    x = 159,242,745.47/15,278.17
  6. Step 6: Final answer
    x = 10,422.89

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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.