Home / 10,200.82-15,305.82-5,515.36

Finding the Fourth Proportional to 10,200.82, 15,305.82 and 5,515.36

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Solution

The fourth proportional to 10,200.82, 15,305.82 and 5,515.36 is: 8,275.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,200.82 : 15,305.82 = 5,515.36 : x
  2. Step 2: Convert to fraction form
    10,200.82/15,305.82 = 5,515.36/x
  3. Step 3: Cross multiply
    10,200.82x = 15,305.82 × 5,515.36
  4. Step 4: Simplify right side
    10,200.82x = 84,417,107.40
  5. Step 5: Solve for x
    x = 84,417,107.40/10,200.82
  6. Step 6: Final answer
    x = 8,275.52

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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.