Home / 15,046.12-20,763.66-8,240.11

Finding the Fourth Proportional to 15,046.12, 20,763.66 and 8,240.11

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Solution

The fourth proportional to 15,046.12, 20,763.66 and 8,240.11 is: 11,371.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,046.12 : 20,763.66 = 8,240.11 : x
  2. Step 2: Convert to fraction form
    15,046.12/20,763.66 = 8,240.11/x
  3. Step 3: Cross multiply
    15,046.12x = 20,763.66 × 8,240.11
  4. Step 4: Simplify right side
    15,046.12x = 171,094,842.40
  5. Step 5: Solve for x
    x = 171,094,842.40/15,046.12
  6. Step 6: Final answer
    x = 11,371.36

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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.