Home / 13,223.74-18,248.76-7,558.61

Finding the Fourth Proportional to 13,223.74, 18,248.76 and 7,558.61

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Solution

The fourth proportional to 13,223.74, 18,248.76 and 7,558.61 is: 10,430.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.74 : 18,248.76 = 7,558.61 : x
  2. Step 2: Convert to fraction form
    13,223.74/18,248.76 = 7,558.61/x
  3. Step 3: Cross multiply
    13,223.74x = 18,248.76 × 7,558.61
  4. Step 4: Simplify right side
    13,223.74x = 137,935,163.05
  5. Step 5: Solve for x
    x = 137,935,163.05/13,223.74
  6. Step 6: Final answer
    x = 10,430.88

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Half scale
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Double scale
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Similar ratio
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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.