Home / 8,220.33-11,353.40-5,526.87

Finding the Fourth Proportional to 8,220.33, 11,353.40 and 5,526.87

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Solution

The fourth proportional to 8,220.33, 11,353.40 and 5,526.87 is: 7,633.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.33 : 11,353.40 = 5,526.87 : x
  2. Step 2: Convert to fraction form
    8,220.33/11,353.40 = 5,526.87/x
  3. Step 3: Cross multiply
    8,220.33x = 11,353.40 × 5,526.87
  4. Step 4: Simplify right side
    8,220.33x = 62,748,765.86
  5. Step 5: Solve for x
    x = 62,748,765.86/8,220.33
  6. Step 6: Final answer
    x = 7,633.36

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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.