Home / 7,513.90-11,255.76-3,505.61

Finding the Fourth Proportional to 7,513.90, 11,255.76 and 3,505.61

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Solution

The fourth proportional to 7,513.90, 11,255.76 and 3,505.61 is: 5,251.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,513.90 : 11,255.76 = 3,505.61 : x
  2. Step 2: Convert to fraction form
    7,513.90/11,255.76 = 3,505.61/x
  3. Step 3: Cross multiply
    7,513.90x = 11,255.76 × 3,505.61
  4. Step 4: Simplify right side
    7,513.90x = 39,458,332.95
  5. Step 5: Solve for x
    x = 39,458,332.95/7,513.90
  6. Step 6: Final answer
    x = 5,251.38

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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.