Home / 13,931.93-19,227.11-7,963.85

Finding the Fourth Proportional to 13,931.93, 19,227.11 and 7,963.85

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Solution

The fourth proportional to 13,931.93, 19,227.11 and 7,963.85 is: 10,990.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.93 : 19,227.11 = 7,963.85 : x
  2. Step 2: Convert to fraction form
    13,931.93/19,227.11 = 7,963.85/x
  3. Step 3: Cross multiply
    13,931.93x = 19,227.11 × 7,963.85
  4. Step 4: Simplify right side
    13,931.93x = 153,121,684.02
  5. Step 5: Solve for x
    x = 153,121,684.02/13,931.93
  6. Step 6: Final answer
    x = 10,990.71

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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.