Home / 9,285.98-12,814.97-6,639.71

Finding the Fourth Proportional to 9,285.98, 12,814.97 and 6,639.71

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Solution

The fourth proportional to 9,285.98, 12,814.97 and 6,639.71 is: 9,163.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.98 : 12,814.97 = 6,639.71 : x
  2. Step 2: Convert to fraction form
    9,285.98/12,814.97 = 6,639.71/x
  3. Step 3: Cross multiply
    9,285.98x = 12,814.97 × 6,639.71
  4. Step 4: Simplify right side
    9,285.98x = 85,087,587.19
  5. Step 5: Solve for x
    x = 85,087,587.19/9,285.98
  6. Step 6: Final answer
    x = 9,163.02

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Similar ratio
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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.