Home / 8,680.68-13,018.35-3,133.32

Finding the Fourth Proportional to 8,680.68, 13,018.35 and 3,133.32

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Solution

The fourth proportional to 8,680.68, 13,018.35 and 3,133.32 is: 4,699.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.68 : 13,018.35 = 3,133.32 : x
  2. Step 2: Convert to fraction form
    8,680.68/13,018.35 = 3,133.32/x
  3. Step 3: Cross multiply
    8,680.68x = 13,018.35 × 3,133.32
  4. Step 4: Simplify right side
    8,680.68x = 40,790,656.42
  5. Step 5: Solve for x
    x = 40,790,656.42/8,680.68
  6. Step 6: Final answer
    x = 4,699.02

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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.