Home / 8,085.88-12,129.18-2,242.36

Finding the Fourth Proportional to 8,085.88, 12,129.18 and 2,242.36

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Solution

The fourth proportional to 8,085.88, 12,129.18 and 2,242.36 is: 3,363.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.88 : 12,129.18 = 2,242.36 : x
  2. Step 2: Convert to fraction form
    8,085.88/12,129.18 = 2,242.36/x
  3. Step 3: Cross multiply
    8,085.88x = 12,129.18 × 2,242.36
  4. Step 4: Simplify right side
    8,085.88x = 27,197,988.06
  5. Step 5: Solve for x
    x = 27,197,988.06/8,085.88
  6. Step 6: Final answer
    x = 3,363.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.