Home / 10,127.68-13,976.16-5,651.44

Finding the Fourth Proportional to 10,127.68, 13,976.16 and 5,651.44

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Solution

The fourth proportional to 10,127.68, 13,976.16 and 5,651.44 is: 7,798.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.68 : 13,976.16 = 5,651.44 : x
  2. Step 2: Convert to fraction form
    10,127.68/13,976.16 = 5,651.44/x
  3. Step 3: Cross multiply
    10,127.68x = 13,976.16 × 5,651.44
  4. Step 4: Simplify right side
    10,127.68x = 78,985,429.67
  5. Step 5: Solve for x
    x = 78,985,429.67/10,127.68
  6. Step 6: Final answer
    x = 7,798.97

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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.