Home / 17,312.79-25,943.64-7,929.66

Finding the Fourth Proportional to 17,312.79, 25,943.64 and 7,929.66

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Solution

The fourth proportional to 17,312.79, 25,943.64 and 7,929.66 is: 11,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,312.79 : 25,943.64 = 7,929.66 : x
  2. Step 2: Convert to fraction form
    17,312.79/25,943.64 = 7,929.66/x
  3. Step 3: Cross multiply
    17,312.79x = 25,943.64 × 7,929.66
  4. Step 4: Simplify right side
    17,312.79x = 205,724,244.36
  5. Step 5: Solve for x
    x = 205,724,244.36/17,312.79
  6. Step 6: Final answer
    x = 11,882.79

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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.