Home / 11,279.72-15,565.74-6,563.90

Finding the Fourth Proportional to 11,279.72, 15,565.74 and 6,563.90

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Solution

The fourth proportional to 11,279.72, 15,565.74 and 6,563.90 is: 9,058.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.72 : 15,565.74 = 6,563.90 : x
  2. Step 2: Convert to fraction form
    11,279.72/15,565.74 = 6,563.90/x
  3. Step 3: Cross multiply
    11,279.72x = 15,565.74 × 6,563.90
  4. Step 4: Simplify right side
    11,279.72x = 102,171,960.79
  5. Step 5: Solve for x
    x = 102,171,960.79/11,279.72
  6. Step 6: Final answer
    x = 9,058.02

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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.