Home / 13,247.43-18,281.79-7,279.25

Finding the Fourth Proportional to 13,247.43, 18,281.79 and 7,279.25

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Solution

The fourth proportional to 13,247.43, 18,281.79 and 7,279.25 is: 10,045.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.43 : 18,281.79 = 7,279.25 : x
  2. Step 2: Convert to fraction form
    13,247.43/18,281.79 = 7,279.25/x
  3. Step 3: Cross multiply
    13,247.43x = 18,281.79 × 7,279.25
  4. Step 4: Simplify right side
    13,247.43x = 133,077,592.05
  5. Step 5: Solve for x
    x = 133,077,592.05/13,247.43
  6. Step 6: Final answer
    x = 10,045.54

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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.