Home / 12,835.28-17,710.28-8,116.24

Finding the Fourth Proportional to 12,835.28, 17,710.28 and 8,116.24

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Solution

The fourth proportional to 12,835.28, 17,710.28 and 8,116.24 is: 11,198.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,835.28 : 17,710.28 = 8,116.24 : x
  2. Step 2: Convert to fraction form
    12,835.28/17,710.28 = 8,116.24/x
  3. Step 3: Cross multiply
    12,835.28x = 17,710.28 × 8,116.24
  4. Step 4: Simplify right side
    12,835.28x = 143,740,882.95
  5. Step 5: Solve for x
    x = 143,740,882.95/12,835.28
  6. Step 6: Final answer
    x = 11,198.89

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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.