Home / 15,934.23-21,983.22-9,881.64

Finding the Fourth Proportional to 15,934.23, 21,983.22 and 9,881.64

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Solution

The fourth proportional to 15,934.23, 21,983.22 and 9,881.64 is: 13,632.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,934.23 : 21,983.22 = 9,881.64 : x
  2. Step 2: Convert to fraction form
    15,934.23/21,983.22 = 9,881.64/x
  3. Step 3: Cross multiply
    15,934.23x = 21,983.22 × 9,881.64
  4. Step 4: Simplify right side
    15,934.23x = 217,230,266.08
  5. Step 5: Solve for x
    x = 217,230,266.08/15,934.23
  6. Step 6: Final answer
    x = 13,632.93

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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.