Home / 13,952.16-20,939.76-13,076.40

Finding the Fourth Proportional to 13,952.16, 20,939.76 and 13,076.40

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Solution

The fourth proportional to 13,952.16, 20,939.76 and 13,076.40 is: 19,625.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.16 : 20,939.76 = 13,076.40 : x
  2. Step 2: Convert to fraction form
    13,952.16/20,939.76 = 13,076.40/x
  3. Step 3: Cross multiply
    13,952.16x = 20,939.76 × 13,076.40
  4. Step 4: Simplify right side
    13,952.16x = 273,816,677.66
  5. Step 5: Solve for x
    x = 273,816,677.66/13,952.16
  6. Step 6: Final answer
    x = 19,625.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.