Home / 15,004.85-22,512.13-7,212.65

Finding the Fourth Proportional to 15,004.85, 22,512.13 and 7,212.65

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Solution

The fourth proportional to 15,004.85, 22,512.13 and 7,212.65 is: 10,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004.85 : 22,512.13 = 7,212.65 : x
  2. Step 2: Convert to fraction form
    15,004.85/22,512.13 = 7,212.65/x
  3. Step 3: Cross multiply
    15,004.85x = 22,512.13 × 7,212.65
  4. Step 4: Simplify right side
    15,004.85x = 162,371,983.85
  5. Step 5: Solve for x
    x = 162,371,983.85/15,004.85
  6. Step 6: Final answer
    x = 10,821.30

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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.