Home / 11,117.65-15,342.33-6,644.02

Finding the Fourth Proportional to 11,117.65, 15,342.33 and 6,644.02

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Solution

The fourth proportional to 11,117.65, 15,342.33 and 6,644.02 is: 9,168.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.65 : 15,342.33 = 6,644.02 : x
  2. Step 2: Convert to fraction form
    11,117.65/15,342.33 = 6,644.02/x
  3. Step 3: Cross multiply
    11,117.65x = 15,342.33 × 6,644.02
  4. Step 4: Simplify right side
    11,117.65x = 101,934,670.65
  5. Step 5: Solve for x
    x = 101,934,670.65/11,117.65
  6. Step 6: Final answer
    x = 9,168.73

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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.