Home / 8,071.08-11,142.08-5,091.52

Finding the Fourth Proportional to 8,071.08, 11,142.08 and 5,091.52

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Solution

The fourth proportional to 8,071.08, 11,142.08 and 5,091.52 is: 7,028.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071.08 : 11,142.08 = 5,091.52 : x
  2. Step 2: Convert to fraction form
    8,071.08/11,142.08 = 5,091.52/x
  3. Step 3: Cross multiply
    8,071.08x = 11,142.08 × 5,091.52
  4. Step 4: Simplify right side
    8,071.08x = 56,730,123.16
  5. Step 5: Solve for x
    x = 56,730,123.16/8,071.08
  6. Step 6: Final answer
    x = 7,028.81

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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.