Home / 11,247.75-15,521.90-6,279.75

Finding the Fourth Proportional to 11,247.75, 15,521.90 and 6,279.75

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Solution

The fourth proportional to 11,247.75, 15,521.90 and 6,279.75 is: 8,666.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,247.75 : 15,521.90 = 6,279.75 : x
  2. Step 2: Convert to fraction form
    11,247.75/15,521.90 = 6,279.75/x
  3. Step 3: Cross multiply
    11,247.75x = 15,521.90 × 6,279.75
  4. Step 4: Simplify right side
    11,247.75x = 97,473,620.13
  5. Step 5: Solve for x
    x = 97,473,620.13/11,247.75
  6. Step 6: Final answer
    x = 8,666.06

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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.