Home / 18,578.63-25,641.56-11,867.58

Finding the Fourth Proportional to 18,578.63, 25,641.56 and 11,867.58

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Solution

The fourth proportional to 18,578.63, 25,641.56 and 11,867.58 is: 16,379.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.63 : 25,641.56 = 11,867.58 : x
  2. Step 2: Convert to fraction form
    18,578.63/25,641.56 = 11,867.58/x
  3. Step 3: Cross multiply
    18,578.63x = 25,641.56 × 11,867.58
  4. Step 4: Simplify right side
    18,578.63x = 304,303,294.29
  5. Step 5: Solve for x
    x = 304,303,294.29/18,578.63
  6. Step 6: Final answer
    x = 16,379.21

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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.