Home / 15,535.76-21,439.41-8,462.12

Finding the Fourth Proportional to 15,535.76, 21,439.41 and 8,462.12

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Solution

The fourth proportional to 15,535.76, 21,439.41 and 8,462.12 is: 11,677.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.76 : 21,439.41 = 8,462.12 : x
  2. Step 2: Convert to fraction form
    15,535.76/21,439.41 = 8,462.12/x
  3. Step 3: Cross multiply
    15,535.76x = 21,439.41 × 8,462.12
  4. Step 4: Simplify right side
    15,535.76x = 181,422,860.15
  5. Step 5: Solve for x
    x = 181,422,860.15/15,535.76
  6. Step 6: Final answer
    x = 11,677.76

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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.