Home / 13,981.08-19,305.56-9,286.32

Finding the Fourth Proportional to 13,981.08, 19,305.56 and 9,286.32

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Solution

The fourth proportional to 13,981.08, 19,305.56 and 9,286.32 is: 12,822.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.08 : 19,305.56 = 9,286.32 : x
  2. Step 2: Convert to fraction form
    13,981.08/19,305.56 = 9,286.32/x
  3. Step 3: Cross multiply
    13,981.08x = 19,305.56 × 9,286.32
  4. Step 4: Simplify right side
    13,981.08x = 179,277,607.94
  5. Step 5: Solve for x
    x = 179,277,607.94/13,981.08
  6. Step 6: Final answer
    x = 12,822.87

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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.