Home / 15,127.75-20,874.69-8,412.29

Finding the Fourth Proportional to 15,127.75, 20,874.69 and 8,412.29

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Solution

The fourth proportional to 15,127.75, 20,874.69 and 8,412.29 is: 11,608.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,127.75 : 20,874.69 = 8,412.29 : x
  2. Step 2: Convert to fraction form
    15,127.75/20,874.69 = 8,412.29/x
  3. Step 3: Cross multiply
    15,127.75x = 20,874.69 × 8,412.29
  4. Step 4: Simplify right side
    15,127.75x = 175,603,966.97
  5. Step 5: Solve for x
    x = 175,603,966.97/15,127.75
  6. Step 6: Final answer
    x = 11,608.07

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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.