Home / 13,928.32-19,217.28-8,963.20

Finding the Fourth Proportional to 13,928.32, 19,217.28 and 8,963.20

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Solution

The fourth proportional to 13,928.32, 19,217.28 and 8,963.20 is: 12,366.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.32 : 19,217.28 = 8,963.20 : x
  2. Step 2: Convert to fraction form
    13,928.32/19,217.28 = 8,963.20/x
  3. Step 3: Cross multiply
    13,928.32x = 19,217.28 × 8,963.20
  4. Step 4: Simplify right side
    13,928.32x = 172,248,324.10
  5. Step 5: Solve for x
    x = 172,248,324.10/13,928.32
  6. Step 6: Final answer
    x = 12,366.77

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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.