Home / 8,127.65-11,215.03-4,542.17

Finding the Fourth Proportional to 8,127.65, 11,215.03 and 4,542.17

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Solution

The fourth proportional to 8,127.65, 11,215.03 and 4,542.17 is: 6,267.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.65 : 11,215.03 = 4,542.17 : x
  2. Step 2: Convert to fraction form
    8,127.65/11,215.03 = 4,542.17/x
  3. Step 3: Cross multiply
    8,127.65x = 11,215.03 × 4,542.17
  4. Step 4: Simplify right side
    8,127.65x = 50,940,547.44
  5. Step 5: Solve for x
    x = 50,940,547.44/8,127.65
  6. Step 6: Final answer
    x = 6,267.56

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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.