Home / 13,908.39-19,192.50-7,939.23

Finding the Fourth Proportional to 13,908.39, 19,192.50 and 7,939.23

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Solution

The fourth proportional to 13,908.39, 19,192.50 and 7,939.23 is: 10,955.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.39 : 19,192.50 = 7,939.23 : x
  2. Step 2: Convert to fraction form
    13,908.39/19,192.50 = 7,939.23/x
  3. Step 3: Cross multiply
    13,908.39x = 19,192.50 × 7,939.23
  4. Step 4: Simplify right side
    13,908.39x = 152,373,671.78
  5. Step 5: Solve for x
    x = 152,373,671.78/13,908.39
  6. Step 6: Final answer
    x = 10,955.52

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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.