Home / 8,906.51-12,287.41-5,127.65

Finding the Fourth Proportional to 8,906.51, 12,287.41 and 5,127.65

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Solution

The fourth proportional to 8,906.51, 12,287.41 and 5,127.65 is: 7,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.51 : 12,287.41 = 5,127.65 : x
  2. Step 2: Convert to fraction form
    8,906.51/12,287.41 = 5,127.65/x
  3. Step 3: Cross multiply
    8,906.51x = 12,287.41 × 5,127.65
  4. Step 4: Simplify right side
    8,906.51x = 63,005,508.90
  5. Step 5: Solve for x
    x = 63,005,508.90/8,906.51
  6. Step 6: Final answer
    x = 7,074.10

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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.