Home / 8,976.96-13,456.33-4,290.10

Finding the Fourth Proportional to 8,976.96, 13,456.33 and 4,290.10

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Solution

The fourth proportional to 8,976.96, 13,456.33 and 4,290.10 is: 6,430.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.96 : 13,456.33 = 4,290.10 : x
  2. Step 2: Convert to fraction form
    8,976.96/13,456.33 = 4,290.10/x
  3. Step 3: Cross multiply
    8,976.96x = 13,456.33 × 4,290.10
  4. Step 4: Simplify right side
    8,976.96x = 57,728,956.97
  5. Step 5: Solve for x
    x = 57,728,956.97/8,976.96
  6. Step 6: Final answer
    x = 6,430.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.