Home / 12,243.10-18,383.85-8,364.70

Finding the Fourth Proportional to 12,243.10, 18,383.85 and 8,364.70

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Solution

The fourth proportional to 12,243.10, 18,383.85 and 8,364.70 is: 12,560.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.10 : 18,383.85 = 8,364.70 : x
  2. Step 2: Convert to fraction form
    12,243.10/18,383.85 = 8,364.70/x
  3. Step 3: Cross multiply
    12,243.10x = 18,383.85 × 8,364.70
  4. Step 4: Simplify right side
    12,243.10x = 153,775,390.10
  5. Step 5: Solve for x
    x = 153,775,390.10/12,243.10
  6. Step 6: Final answer
    x = 12,560.17

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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.