Home / 12,247.30-16,902.47-7,213.10

Finding the Fourth Proportional to 12,247.30, 16,902.47 and 7,213.10

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Solution

The fourth proportional to 12,247.30, 16,902.47 and 7,213.10 is: 9,954.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,247.30 : 16,902.47 = 7,213.10 : x
  2. Step 2: Convert to fraction form
    12,247.30/16,902.47 = 7,213.10/x
  3. Step 3: Cross multiply
    12,247.30x = 16,902.47 × 7,213.10
  4. Step 4: Simplify right side
    12,247.30x = 121,919,266.65
  5. Step 5: Solve for x
    x = 121,919,266.65/12,247.30
  6. Step 6: Final answer
    x = 9,954.79

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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.