Home / 11,451.24-15,793.38-9,688.68

Finding the Fourth Proportional to 11,451.24, 15,793.38 and 9,688.68

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Solution

The fourth proportional to 11,451.24, 15,793.38 and 9,688.68 is: 13,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.24 : 15,793.38 = 9,688.68 : x
  2. Step 2: Convert to fraction form
    11,451.24/15,793.38 = 9,688.68/x
  3. Step 3: Cross multiply
    11,451.24x = 15,793.38 × 9,688.68
  4. Step 4: Simplify right side
    11,451.24x = 153,017,004.94
  5. Step 5: Solve for x
    x = 153,017,004.94/11,451.24
  6. Step 6: Final answer
    x = 13,362.48

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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.