Home / 6,751.40-10,127.10-5,111.15

Finding the Fourth Proportional to 6,751.40, 10,127.10 and 5,111.15

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Solution

The fourth proportional to 6,751.40, 10,127.10 and 5,111.15 is: 7,666.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,751.40 : 10,127.10 = 5,111.15 : x
  2. Step 2: Convert to fraction form
    6,751.40/10,127.10 = 5,111.15/x
  3. Step 3: Cross multiply
    6,751.40x = 10,127.10 × 5,111.15
  4. Step 4: Simplify right side
    6,751.40x = 51,761,127.17
  5. Step 5: Solve for x
    x = 51,761,127.17/6,751.40
  6. Step 6: Final answer
    x = 7,666.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.