Home / 10,450.80-15,686.88-5,519.52

Finding the Fourth Proportional to 10,450.80, 15,686.88 and 5,519.52

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Solution

The fourth proportional to 10,450.80, 15,686.88 and 5,519.52 is: 8,284.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,450.80 : 15,686.88 = 5,519.52 : x
  2. Step 2: Convert to fraction form
    10,450.80/15,686.88 = 5,519.52/x
  3. Step 3: Cross multiply
    10,450.80x = 15,686.88 × 5,519.52
  4. Step 4: Simplify right side
    10,450.80x = 86,584,047.90
  5. Step 5: Solve for x
    x = 86,584,047.90/10,450.80
  6. Step 6: Final answer
    x = 8,284.92

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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.