Home / 9,306.08-12,845.76-6,515.36

Finding the Fourth Proportional to 9,306.08, 12,845.76 and 6,515.36

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Solution

The fourth proportional to 9,306.08, 12,845.76 and 6,515.36 is: 8,993.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,306.08 : 12,845.76 = 6,515.36 : x
  2. Step 2: Convert to fraction form
    9,306.08/12,845.76 = 6,515.36/x
  3. Step 3: Cross multiply
    9,306.08x = 12,845.76 × 6,515.36
  4. Step 4: Simplify right side
    9,306.08x = 83,694,750.87
  5. Step 5: Solve for x
    x = 83,694,750.87/9,306.08
  6. Step 6: Final answer
    x = 8,993.56

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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.