Home / 8,987.68-12,401.94-5,210.92

Finding the Fourth Proportional to 8,987.68, 12,401.94 and 5,210.92

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Solution

The fourth proportional to 8,987.68, 12,401.94 and 5,210.92 is: 7,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.68 : 12,401.94 = 5,210.92 : x
  2. Step 2: Convert to fraction form
    8,987.68/12,401.94 = 5,210.92/x
  3. Step 3: Cross multiply
    8,987.68x = 12,401.94 × 5,210.92
  4. Step 4: Simplify right side
    8,987.68x = 64,625,517.18
  5. Step 5: Solve for x
    x = 64,625,517.18/8,987.68
  6. Step 6: Final answer
    x = 7,190.46

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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.