Home / 12,561.46-17,334.93-7,255.78

Finding the Fourth Proportional to 12,561.46, 17,334.93 and 7,255.78

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Solution

The fourth proportional to 12,561.46, 17,334.93 and 7,255.78 is: 10,013.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.46 : 17,334.93 = 7,255.78 : x
  2. Step 2: Convert to fraction form
    12,561.46/17,334.93 = 7,255.78/x
  3. Step 3: Cross multiply
    12,561.46x = 17,334.93 × 7,255.78
  4. Step 4: Simplify right side
    12,561.46x = 125,778,438.40
  5. Step 5: Solve for x
    x = 125,778,438.40/12,561.46
  6. Step 6: Final answer
    x = 10,013.04

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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.