Home / 13,981.56-19,252.92-13,671.12

Finding the Fourth Proportional to 13,981.56, 19,252.92 and 13,671.12

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Solution

The fourth proportional to 13,981.56, 19,252.92 and 13,671.12 is: 18,825.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.56 : 19,252.92 = 13,671.12 : x
  2. Step 2: Convert to fraction form
    13,981.56/19,252.92 = 13,671.12/x
  3. Step 3: Cross multiply
    13,981.56x = 19,252.92 × 13,671.12
  4. Step 4: Simplify right side
    13,981.56x = 263,208,979.67
  5. Step 5: Solve for x
    x = 263,208,979.67/13,981.56
  6. Step 6: Final answer
    x = 18,825.44

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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.