Home / 8,220.26-11,345.28-5,237.30

Finding the Fourth Proportional to 8,220.26, 11,345.28 and 5,237.30

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Solution

The fourth proportional to 8,220.26, 11,345.28 and 5,237.30 is: 7,228.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.26 : 11,345.28 = 5,237.30 : x
  2. Step 2: Convert to fraction form
    8,220.26/11,345.28 = 5,237.30/x
  3. Step 3: Cross multiply
    8,220.26x = 11,345.28 × 5,237.30
  4. Step 4: Simplify right side
    8,220.26x = 59,418,634.94
  5. Step 5: Solve for x
    x = 59,418,634.94/8,220.26
  6. Step 6: Final answer
    x = 7,228.32

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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.