Home / 12,233.10-18,349.65-10,920.90

Finding the Fourth Proportional to 12,233.10, 18,349.65 and 10,920.90

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Solution

The fourth proportional to 12,233.10, 18,349.65 and 10,920.90 is: 16,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,233.10 : 18,349.65 = 10,920.90 : x
  2. Step 2: Convert to fraction form
    12,233.10/18,349.65 = 10,920.90/x
  3. Step 3: Cross multiply
    12,233.10x = 18,349.65 × 10,920.90
  4. Step 4: Simplify right side
    12,233.10x = 200,394,692.69
  5. Step 5: Solve for x
    x = 200,394,692.69/12,233.10
  6. Step 6: Final answer
    x = 16,381.35

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1.5x scale

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.