Home / 8,983.42-12,397.12-5,208.79

Finding the Fourth Proportional to 8,983.42, 12,397.12 and 5,208.79

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Solution

The fourth proportional to 8,983.42, 12,397.12 and 5,208.79 is: 7,188.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.42 : 12,397.12 = 5,208.79 : x
  2. Step 2: Convert to fraction form
    8,983.42/12,397.12 = 5,208.79/x
  3. Step 3: Cross multiply
    8,983.42x = 12,397.12 × 5,208.79
  4. Step 4: Simplify right side
    8,983.42x = 64,573,932.70
  5. Step 5: Solve for x
    x = 64,573,932.70/8,983.42
  6. Step 6: Final answer
    x = 7,188.12

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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.