Home / 12,207.74-18,299.04-4,809.20

Finding the Fourth Proportional to 12,207.74, 18,299.04 and 4,809.20

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Solution

The fourth proportional to 12,207.74, 18,299.04 and 4,809.20 is: 7,208.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.74 : 18,299.04 = 4,809.20 : x
  2. Step 2: Convert to fraction form
    12,207.74/18,299.04 = 4,809.20/x
  3. Step 3: Cross multiply
    12,207.74x = 18,299.04 × 4,809.20
  4. Step 4: Simplify right side
    12,207.74x = 88,003,743.17
  5. Step 5: Solve for x
    x = 88,003,743.17/12,207.74
  6. Step 6: Final answer
    x = 7,208.85

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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.