Home / 8,076.51-11,147.40-4,720.95

Finding the Fourth Proportional to 8,076.51, 11,147.40 and 4,720.95

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Solution

The fourth proportional to 8,076.51, 11,147.40 and 4,720.95 is: 6,515.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.51 : 11,147.40 = 4,720.95 : x
  2. Step 2: Convert to fraction form
    8,076.51/11,147.40 = 4,720.95/x
  3. Step 3: Cross multiply
    8,076.51x = 11,147.40 × 4,720.95
  4. Step 4: Simplify right side
    8,076.51x = 52,626,318.03
  5. Step 5: Solve for x
    x = 52,626,318.03/8,076.51
  6. Step 6: Final answer
    x = 6,515.97

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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.