Home / 15,722.07-21,696.45-9,434.43

Finding the Fourth Proportional to 15,722.07, 21,696.45 and 9,434.43

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Solution

The fourth proportional to 15,722.07, 21,696.45 and 9,434.43 is: 13,019.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,722.07 : 21,696.45 = 9,434.43 : x
  2. Step 2: Convert to fraction form
    15,722.07/21,696.45 = 9,434.43/x
  3. Step 3: Cross multiply
    15,722.07x = 21,696.45 × 9,434.43
  4. Step 4: Simplify right side
    15,722.07x = 204,693,638.77
  5. Step 5: Solve for x
    x = 204,693,638.77/15,722.07
  6. Step 6: Final answer
    x = 13,019.51

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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.