Home / 15,112.90-22,672.95-7,315.30

Finding the Fourth Proportional to 15,112.90, 22,672.95 and 7,315.30

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Solution

The fourth proportional to 15,112.90, 22,672.95 and 7,315.30 is: 10,974.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112.90 : 22,672.95 = 7,315.30 : x
  2. Step 2: Convert to fraction form
    15,112.90/22,672.95 = 7,315.30/x
  3. Step 3: Cross multiply
    15,112.90x = 22,672.95 × 7,315.30
  4. Step 4: Simplify right side
    15,112.90x = 165,859,431.14
  5. Step 5: Solve for x
    x = 165,859,431.14/15,112.90
  6. Step 6: Final answer
    x = 10,974.69

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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.