Home / 8,461.31-11,685.81-5,816.39

Finding the Fourth Proportional to 8,461.31, 11,685.81 and 5,816.39

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Solution

The fourth proportional to 8,461.31, 11,685.81 and 5,816.39 is: 8,032.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461.31 : 11,685.81 = 5,816.39 : x
  2. Step 2: Convert to fraction form
    8,461.31/11,685.81 = 5,816.39/x
  3. Step 3: Cross multiply
    8,461.31x = 11,685.81 × 5,816.39
  4. Step 4: Simplify right side
    8,461.31x = 67,969,170.00
  5. Step 5: Solve for x
    x = 67,969,170.00/8,461.31
  6. Step 6: Final answer
    x = 8,032.94

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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.