Home / 18,830.27-25,988.07-10,872.47

Finding the Fourth Proportional to 18,830.27, 25,988.07 and 10,872.47

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Solution

The fourth proportional to 18,830.27, 25,988.07 and 10,872.47 is: 15,005.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.27 : 25,988.07 = 10,872.47 : x
  2. Step 2: Convert to fraction form
    18,830.27/25,988.07 = 10,872.47/x
  3. Step 3: Cross multiply
    18,830.27x = 25,988.07 × 10,872.47
  4. Step 4: Simplify right side
    18,830.27x = 282,554,511.43
  5. Step 5: Solve for x
    x = 282,554,511.43/18,830.27
  6. Step 6: Final answer
    x = 15,005.34

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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.