Home / 8,217.75-11,340.90-4,681.29

Finding the Fourth Proportional to 8,217.75, 11,340.90 and 4,681.29

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Solution

The fourth proportional to 8,217.75, 11,340.90 and 4,681.29 is: 6,460.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.75 : 11,340.90 = 4,681.29 : x
  2. Step 2: Convert to fraction form
    8,217.75/11,340.90 = 4,681.29/x
  3. Step 3: Cross multiply
    8,217.75x = 11,340.90 × 4,681.29
  4. Step 4: Simplify right side
    8,217.75x = 53,090,041.76
  5. Step 5: Solve for x
    x = 53,090,041.76/8,217.75
  6. Step 6: Final answer
    x = 6,460.41

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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.