Home / 8,071.04-11,138.11-5,239.49

Finding the Fourth Proportional to 8,071.04, 11,138.11 and 5,239.49

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Solution

The fourth proportional to 8,071.04, 11,138.11 and 5,239.49 is: 7,230.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071.04 : 11,138.11 = 5,239.49 : x
  2. Step 2: Convert to fraction form
    8,071.04/11,138.11 = 5,239.49/x
  3. Step 3: Cross multiply
    8,071.04x = 11,138.11 × 5,239.49
  4. Step 4: Simplify right side
    8,071.04x = 58,357,947.17
  5. Step 5: Solve for x
    x = 58,357,947.17/8,071.04
  6. Step 6: Final answer
    x = 7,230.53

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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.