Home / 8,615.38-11,889.23-4,838.55

Finding the Fourth Proportional to 8,615.38, 11,889.23 and 4,838.55

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Solution

The fourth proportional to 8,615.38, 11,889.23 and 4,838.55 is: 6,677.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615.38 : 11,889.23 = 4,838.55 : x
  2. Step 2: Convert to fraction form
    8,615.38/11,889.23 = 4,838.55/x
  3. Step 3: Cross multiply
    8,615.38x = 11,889.23 × 4,838.55
  4. Step 4: Simplify right side
    8,615.38x = 57,526,648.93
  5. Step 5: Solve for x
    x = 57,526,648.93/8,615.38
  6. Step 6: Final answer
    x = 6,677.20

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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.