Home / 8,983.60-12,396.42-5,207.95

Finding the Fourth Proportional to 8,983.60, 12,396.42 and 5,207.95

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Solution

The fourth proportional to 8,983.60, 12,396.42 and 5,207.95 is: 7,186.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.60 : 12,396.42 = 5,207.95 : x
  2. Step 2: Convert to fraction form
    8,983.60/12,396.42 = 5,207.95/x
  3. Step 3: Cross multiply
    8,983.60x = 12,396.42 × 5,207.95
  4. Step 4: Simplify right side
    8,983.60x = 64,559,904.55
  5. Step 5: Solve for x
    x = 64,559,904.55/8,983.60
  6. Step 6: Final answer
    x = 7,186.42

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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.