Home / 8,621.29-12,914.92-6,763.15

Finding the Fourth Proportional to 8,621.29, 12,914.92 and 6,763.15

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Solution

The fourth proportional to 8,621.29, 12,914.92 and 6,763.15 is: 10,131.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.29 : 12,914.92 = 6,763.15 : x
  2. Step 2: Convert to fraction form
    8,621.29/12,914.92 = 6,763.15/x
  3. Step 3: Cross multiply
    8,621.29x = 12,914.92 × 6,763.15
  4. Step 4: Simplify right side
    8,621.29x = 87,345,541.20
  5. Step 5: Solve for x
    x = 87,345,541.20/8,621.29
  6. Step 6: Final answer
    x = 10,131.38

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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.