Home / 13,247.88-18,282.18-7,279.38

Finding the Fourth Proportional to 13,247.88, 18,282.18 and 7,279.38

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Solution

The fourth proportional to 13,247.88, 18,282.18 and 7,279.38 is: 10,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.88 : 18,282.18 = 7,279.38 : x
  2. Step 2: Convert to fraction form
    13,247.88/18,282.18 = 7,279.38/x
  3. Step 3: Cross multiply
    13,247.88x = 18,282.18 × 7,279.38
  4. Step 4: Simplify right side
    13,247.88x = 133,082,935.45
  5. Step 5: Solve for x
    x = 133,082,935.45/13,247.88
  6. Step 6: Final answer
    x = 10,045.60

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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.