Home / 8,340-11,507.36-4,982.30

Finding the Fourth Proportional to 8,340, 11,507.36 and 4,982.30

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Solution

The fourth proportional to 8,340, 11,507.36 and 4,982.30 is: 6,874.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340 : 11,507.36 = 4,982.30 : x
  2. Step 2: Convert to fraction form
    8,340/11,507.36 = 4,982.30/x
  3. Step 3: Cross multiply
    8,340x = 11,507.36 × 4,982.30
  4. Step 4: Simplify right side
    8,340x = 57,333,037.28
  5. Step 5: Solve for x
    x = 57,333,037.28/8,340
  6. Step 6: Final answer
    x = 6,874.46

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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.