Home / 12,296.39-16,948.79-8,712.55

Finding the Fourth Proportional to 12,296.39, 16,948.79 and 8,712.55

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Solution

The fourth proportional to 12,296.39, 16,948.79 and 8,712.55 is: 12,008.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,296.39 : 16,948.79 = 8,712.55 : x
  2. Step 2: Convert to fraction form
    12,296.39/16,948.79 = 8,712.55/x
  3. Step 3: Cross multiply
    12,296.39x = 16,948.79 × 8,712.55
  4. Step 4: Simplify right side
    12,296.39x = 147,667,052.01
  5. Step 5: Solve for x
    x = 147,667,052.01/12,296.39
  6. Step 6: Final answer
    x = 12,008.98

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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.