Home / 8,684.19-11,984.09-5,147.46

Finding the Fourth Proportional to 8,684.19, 11,984.09 and 5,147.46

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Solution

The fourth proportional to 8,684.19, 11,984.09 and 5,147.46 is: 7,103.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.19 : 11,984.09 = 5,147.46 : x
  2. Step 2: Convert to fraction form
    8,684.19/11,984.09 = 5,147.46/x
  3. Step 3: Cross multiply
    8,684.19x = 11,984.09 × 5,147.46
  4. Step 4: Simplify right side
    8,684.19x = 61,687,598.17
  5. Step 5: Solve for x
    x = 61,687,598.17/8,684.19
  6. Step 6: Final answer
    x = 7,103.44

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Double scale
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Similar ratio
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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.