Home / 12,240.09-18,320.04-8,084.79

Finding the Fourth Proportional to 12,240.09, 18,320.04 and 8,084.79

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Solution

The fourth proportional to 12,240.09, 18,320.04 and 8,084.79 is: 12,100.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.09 : 18,320.04 = 8,084.79 : x
  2. Step 2: Convert to fraction form
    12,240.09/18,320.04 = 8,084.79/x
  3. Step 3: Cross multiply
    12,240.09x = 18,320.04 × 8,084.79
  4. Step 4: Simplify right side
    12,240.09x = 148,113,676.19
  5. Step 5: Solve for x
    x = 148,113,676.19/12,240.09
  6. Step 6: Final answer
    x = 12,100.70

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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.