Home / 8,071.72-11,139.08-4,884.98

Finding the Fourth Proportional to 8,071.72, 11,139.08 and 4,884.98

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Solution

The fourth proportional to 8,071.72, 11,139.08 and 4,884.98 is: 6,741.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071.72 : 11,139.08 = 4,884.98 : x
  2. Step 2: Convert to fraction form
    8,071.72/11,139.08 = 4,884.98/x
  3. Step 3: Cross multiply
    8,071.72x = 11,139.08 × 4,884.98
  4. Step 4: Simplify right side
    8,071.72x = 54,414,195.23
  5. Step 5: Solve for x
    x = 54,414,195.23/8,071.72
  6. Step 6: Final answer
    x = 6,741.34

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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.