Home / 8,071.18-11,141.75-4,712.72

Finding the Fourth Proportional to 8,071.18, 11,141.75 and 4,712.72

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Solution

The fourth proportional to 8,071.18, 11,141.75 and 4,712.72 is: 6,505.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071.18 : 11,141.75 = 4,712.72 : x
  2. Step 2: Convert to fraction form
    8,071.18/11,141.75 = 4,712.72/x
  3. Step 3: Cross multiply
    8,071.18x = 11,141.75 × 4,712.72
  4. Step 4: Simplify right side
    8,071.18x = 52,507,904.13
  5. Step 5: Solve for x
    x = 52,507,904.13/8,071.18
  6. Step 6: Final answer
    x = 6,505.61

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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.