Home / 8,139.38-11,232.48-4,602.59

Finding the Fourth Proportional to 8,139.38, 11,232.48 and 4,602.59

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Solution

The fourth proportional to 8,139.38, 11,232.48 and 4,602.59 is: 6,351.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.38 : 11,232.48 = 4,602.59 : x
  2. Step 2: Convert to fraction form
    8,139.38/11,232.48 = 4,602.59/x
  3. Step 3: Cross multiply
    8,139.38x = 11,232.48 × 4,602.59
  4. Step 4: Simplify right side
    8,139.38x = 51,698,443.96
  5. Step 5: Solve for x
    x = 51,698,443.96/8,139.38
  6. Step 6: Final answer
    x = 6,351.65

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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.