Home / 15,920.33-21,963.23-9,941.61

Finding the Fourth Proportional to 15,920.33, 21,963.23 and 9,941.61

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Solution

The fourth proportional to 15,920.33, 21,963.23 and 9,941.61 is: 13,715.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920.33 : 21,963.23 = 9,941.61 : x
  2. Step 2: Convert to fraction form
    15,920.33/21,963.23 = 9,941.61/x
  3. Step 3: Cross multiply
    15,920.33x = 21,963.23 × 9,941.61
  4. Step 4: Simplify right side
    15,920.33x = 218,349,992.86
  5. Step 5: Solve for x
    x = 218,349,992.86/15,920.33
  6. Step 6: Final answer
    x = 13,715.17

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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.