Home / 18,702.36-25,808.14-10,318.84

Finding the Fourth Proportional to 18,702.36, 25,808.14 and 10,318.84

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Solution

The fourth proportional to 18,702.36, 25,808.14 and 10,318.84 is: 14,239.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.36 : 25,808.14 = 10,318.84 : x
  2. Step 2: Convert to fraction form
    18,702.36/25,808.14 = 10,318.84/x
  3. Step 3: Cross multiply
    18,702.36x = 25,808.14 × 10,318.84
  4. Step 4: Simplify right side
    18,702.36x = 266,310,067.36
  5. Step 5: Solve for x
    x = 266,310,067.36/18,702.36
  6. Step 6: Final answer
    x = 14,239.38

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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.