Home / 8,713.08-12,025.96-5,729.20

Finding the Fourth Proportional to 8,713.08, 12,025.96 and 5,729.20

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Solution

The fourth proportional to 8,713.08, 12,025.96 and 5,729.20 is: 7,907.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.08 : 12,025.96 = 5,729.20 : x
  2. Step 2: Convert to fraction form
    8,713.08/12,025.96 = 5,729.20/x
  3. Step 3: Cross multiply
    8,713.08x = 12,025.96 × 5,729.20
  4. Step 4: Simplify right side
    8,713.08x = 68,899,085.64
  5. Step 5: Solve for x
    x = 68,899,085.64/8,713.08
  6. Step 6: Final answer
    x = 7,907.55

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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.