Home / 8,541.96-12,812.47-3,279.49

Finding the Fourth Proportional to 8,541.96, 12,812.47 and 3,279.49

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Solution

The fourth proportional to 8,541.96, 12,812.47 and 3,279.49 is: 4,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.96 : 12,812.47 = 3,279.49 : x
  2. Step 2: Convert to fraction form
    8,541.96/12,812.47 = 3,279.49/x
  3. Step 3: Cross multiply
    8,541.96x = 12,812.47 × 3,279.49
  4. Step 4: Simplify right side
    8,541.96x = 42,018,367.24
  5. Step 5: Solve for x
    x = 42,018,367.24/8,541.96
  6. Step 6: Final answer
    x = 4,919.05

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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.