Home / 9,177.65-12,658.11-6,188.75

Finding the Fourth Proportional to 9,177.65, 12,658.11 and 6,188.75

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Solution

The fourth proportional to 9,177.65, 12,658.11 and 6,188.75 is: 8,535.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.65 : 12,658.11 = 6,188.75 : x
  2. Step 2: Convert to fraction form
    9,177.65/12,658.11 = 6,188.75/x
  3. Step 3: Cross multiply
    9,177.65x = 12,658.11 × 6,188.75
  4. Step 4: Simplify right side
    9,177.65x = 78,337,878.26
  5. Step 5: Solve for x
    x = 78,337,878.26/9,177.65
  6. Step 6: Final answer
    x = 8,535.72

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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.