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Finding the Fourth Proportional to 11,537.16, 15,918.90 and 7,343.88

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Solution

The fourth proportional to 11,537.16, 15,918.90 and 7,343.88 is: 10,133.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,537.16 : 15,918.90 = 7,343.88 : x
  2. Step 2: Convert to fraction form
    11,537.16/15,918.90 = 7,343.88/x
  3. Step 3: Cross multiply
    11,537.16x = 15,918.90 × 7,343.88
  4. Step 4: Simplify right side
    11,537.16x = 116,906,491.33
  5. Step 5: Solve for x
    x = 116,906,491.33/11,537.16
  6. Step 6: Final answer
    x = 10,133.04

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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.