Home / 8,127.04-11,213.76-5,143.36

Finding the Fourth Proportional to 8,127.04, 11,213.76 and 5,143.36

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Solution

The fourth proportional to 8,127.04, 11,213.76 and 5,143.36 is: 7,096.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.04 : 11,213.76 = 5,143.36 : x
  2. Step 2: Convert to fraction form
    8,127.04/11,213.76 = 5,143.36/x
  3. Step 3: Cross multiply
    8,127.04x = 11,213.76 × 5,143.36
  4. Step 4: Simplify right side
    8,127.04x = 57,676,404.63
  5. Step 5: Solve for x
    x = 57,676,404.63/8,127.04
  6. Step 6: Final answer
    x = 7,096.85

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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.