Home / 12,206.67-16,815.07-10,408.29

Finding the Fourth Proportional to 12,206.67, 16,815.07 and 10,408.29

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Solution

The fourth proportional to 12,206.67, 16,815.07 and 10,408.29 is: 14,337.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.67 : 16,815.07 = 10,408.29 : x
  2. Step 2: Convert to fraction form
    12,206.67/16,815.07 = 10,408.29/x
  3. Step 3: Cross multiply
    12,206.67x = 16,815.07 × 10,408.29
  4. Step 4: Simplify right side
    12,206.67x = 175,016,169.47
  5. Step 5: Solve for x
    x = 175,016,169.47/12,206.67
  6. Step 6: Final answer
    x = 14,337.75

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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.