Home / 19,896.46-27,468.49-13,191.20

Finding the Fourth Proportional to 19,896.46, 27,468.49 and 13,191.20

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Solution

The fourth proportional to 19,896.46, 27,468.49 and 13,191.20 is: 18,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,896.46 : 27,468.49 = 13,191.20 : x
  2. Step 2: Convert to fraction form
    19,896.46/27,468.49 = 13,191.20/x
  3. Step 3: Cross multiply
    19,896.46x = 27,468.49 × 13,191.20
  4. Step 4: Simplify right side
    19,896.46x = 362,342,320.49
  5. Step 5: Solve for x
    x = 362,342,320.49/19,896.46
  6. Step 6: Final answer
    x = 18,211.40

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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.