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Finding the Fourth Proportional to 11,937.58, 17,908.31 and 3,615.65

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Solution

The fourth proportional to 11,937.58, 17,908.31 and 3,615.65 is: 5,424.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,937.58 : 17,908.31 = 3,615.65 : x
  2. Step 2: Convert to fraction form
    11,937.58/17,908.31 = 3,615.65/x
  3. Step 3: Cross multiply
    11,937.58x = 17,908.31 × 3,615.65
  4. Step 4: Simplify right side
    11,937.58x = 64,750,082.47
  5. Step 5: Solve for x
    x = 64,750,082.47/11,937.58
  6. Step 6: Final answer
    x = 5,424.06

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1.5x scale

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.