Home / 13,247.68-18,282.13-7,279.50

Finding the Fourth Proportional to 13,247.68, 18,282.13 and 7,279.50

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Solution

The fourth proportional to 13,247.68, 18,282.13 and 7,279.50 is: 10,045.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.68 : 18,282.13 = 7,279.50 : x
  2. Step 2: Convert to fraction form
    13,247.68/18,282.13 = 7,279.50/x
  3. Step 3: Cross multiply
    13,247.68x = 18,282.13 × 7,279.50
  4. Step 4: Simplify right side
    13,247.68x = 133,084,673.92
  5. Step 5: Solve for x
    x = 133,084,673.92/13,247.68
  6. Step 6: Final answer
    x = 10,045.89

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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.