Home / 13,247.34-18,282.74-7,942.65

Finding the Fourth Proportional to 13,247.34, 18,282.74 and 7,942.65

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Solution

The fourth proportional to 13,247.34, 18,282.74 and 7,942.65 is: 10,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.34 : 18,282.74 = 7,942.65 : x
  2. Step 2: Convert to fraction form
    13,247.34/18,282.74 = 7,942.65/x
  3. Step 3: Cross multiply
    13,247.34x = 18,282.74 × 7,942.65
  4. Step 4: Simplify right side
    13,247.34x = 145,213,365.15
  5. Step 5: Solve for x
    x = 145,213,365.15/13,247.34
  6. Step 6: Final answer
    x = 10,961.70

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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.