Home / 11,391.47-17,088.10-3,071.36

Finding the Fourth Proportional to 11,391.47, 17,088.10 and 3,071.36

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Solution

The fourth proportional to 11,391.47, 17,088.10 and 3,071.36 is: 4,607.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391.47 : 17,088.10 = 3,071.36 : x
  2. Step 2: Convert to fraction form
    11,391.47/17,088.10 = 3,071.36/x
  3. Step 3: Cross multiply
    11,391.47x = 17,088.10 × 3,071.36
  4. Step 4: Simplify right side
    11,391.47x = 52,483,757.21
  5. Step 5: Solve for x
    x = 52,483,757.21/11,391.47
  6. Step 6: Final answer
    x = 4,607.28

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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.