Home / 9,118.55-13,672.35-3,565.28

Finding the Fourth Proportional to 9,118.55, 13,672.35 and 3,565.28

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Solution

The fourth proportional to 9,118.55, 13,672.35 and 3,565.28 is: 5,345.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.55 : 13,672.35 = 3,565.28 : x
  2. Step 2: Convert to fraction form
    9,118.55/13,672.35 = 3,565.28/x
  3. Step 3: Cross multiply
    9,118.55x = 13,672.35 × 3,565.28
  4. Step 4: Simplify right side
    9,118.55x = 48,745,687.65
  5. Step 5: Solve for x
    x = 48,745,687.65/9,118.55
  6. Step 6: Final answer
    x = 5,345.77

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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.