Home / 13,951.44-19,251.88-7,981.74

Finding the Fourth Proportional to 13,951.44, 19,251.88 and 7,981.74

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Solution

The fourth proportional to 13,951.44, 19,251.88 and 7,981.74 is: 11,014.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.44 : 19,251.88 = 7,981.74 : x
  2. Step 2: Convert to fraction form
    13,951.44/19,251.88 = 7,981.74/x
  3. Step 3: Cross multiply
    13,951.44x = 19,251.88 × 7,981.74
  4. Step 4: Simplify right side
    13,951.44x = 153,663,480.72
  5. Step 5: Solve for x
    x = 153,663,480.72/13,951.44
  6. Step 6: Final answer
    x = 11,014.17

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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.