Home / 9,288.20-12,805.07-6,630.99

Finding the Fourth Proportional to 9,288.20, 12,805.07 and 6,630.99

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Solution

The fourth proportional to 9,288.20, 12,805.07 and 6,630.99 is: 9,141.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,288.20 : 12,805.07 = 6,630.99 : x
  2. Step 2: Convert to fraction form
    9,288.20/12,805.07 = 6,630.99/x
  3. Step 3: Cross multiply
    9,288.20x = 12,805.07 × 6,630.99
  4. Step 4: Simplify right side
    9,288.20x = 84,910,257.96
  5. Step 5: Solve for x
    x = 84,910,257.96/9,288.20
  6. Step 6: Final answer
    x = 9,141.74

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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.