Home / 15,012.59-20,717.39-8,206.73

Finding the Fourth Proportional to 15,012.59, 20,717.39 and 8,206.73

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Solution

The fourth proportional to 15,012.59, 20,717.39 and 8,206.73 is: 11,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012.59 : 20,717.39 = 8,206.73 : x
  2. Step 2: Convert to fraction form
    15,012.59/20,717.39 = 8,206.73/x
  3. Step 3: Cross multiply
    15,012.59x = 20,717.39 × 8,206.73
  4. Step 4: Simplify right side
    15,012.59x = 170,022,026.03
  5. Step 5: Solve for x
    x = 170,022,026.03/15,012.59
  6. Step 6: Final answer
    x = 11,325.30

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Half scale
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Double scale
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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.