Home / 11,923.20-16,459.20-9,266.40

Finding the Fourth Proportional to 11,923.20, 16,459.20 and 9,266.40

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Solution

The fourth proportional to 11,923.20, 16,459.20 and 9,266.40 is: 12,791.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,923.20 : 16,459.20 = 9,266.40 : x
  2. Step 2: Convert to fraction form
    11,923.20/16,459.20 = 9,266.40/x
  3. Step 3: Cross multiply
    11,923.20x = 16,459.20 × 9,266.40
  4. Step 4: Simplify right side
    11,923.20x = 152,517,530.88
  5. Step 5: Solve for x
    x = 152,517,530.88/11,923.20
  6. Step 6: Final answer
    x = 12,791.66

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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.