Home / 7,512.80-11,267.91-3,129.08

Finding the Fourth Proportional to 7,512.80, 11,267.91 and 3,129.08

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Solution

The fourth proportional to 7,512.80, 11,267.91 and 3,129.08 is: 4,693.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,512.80 : 11,267.91 = 3,129.08 : x
  2. Step 2: Convert to fraction form
    7,512.80/11,267.91 = 3,129.08/x
  3. Step 3: Cross multiply
    7,512.80x = 11,267.91 × 3,129.08
  4. Step 4: Simplify right side
    7,512.80x = 35,258,135.48
  5. Step 5: Solve for x
    x = 35,258,135.48/7,512.80
  6. Step 6: Final answer
    x = 4,693.08

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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.