Home / 15,360.96-21,198.17-8,646.69

Finding the Fourth Proportional to 15,360.96, 21,198.17 and 8,646.69

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Solution

The fourth proportional to 15,360.96, 21,198.17 and 8,646.69 is: 11,932.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,360.96 : 21,198.17 = 8,646.69 : x
  2. Step 2: Convert to fraction form
    15,360.96/21,198.17 = 8,646.69/x
  3. Step 3: Cross multiply
    15,360.96x = 21,198.17 × 8,646.69
  4. Step 4: Simplify right side
    15,360.96x = 183,294,004.56
  5. Step 5: Solve for x
    x = 183,294,004.56/15,360.96
  6. Step 6: Final answer
    x = 11,932.46

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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.