Home / 10,884.87-15,020.91-7,100.85

Finding the Fourth Proportional to 10,884.87, 15,020.91 and 7,100.85

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Solution

The fourth proportional to 10,884.87, 15,020.91 and 7,100.85 is: 9,799.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,884.87 : 15,020.91 = 7,100.85 : x
  2. Step 2: Convert to fraction form
    10,884.87/15,020.91 = 7,100.85/x
  3. Step 3: Cross multiply
    10,884.87x = 15,020.91 × 7,100.85
  4. Step 4: Simplify right side
    10,884.87x = 106,661,228.77
  5. Step 5: Solve for x
    x = 106,661,228.77/10,884.87
  6. Step 6: Final answer
    x = 9,799.04

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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.