Home / 16,878.78-25,335.72-12,441.47

Finding the Fourth Proportional to 16,878.78, 25,335.72 and 12,441.47

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Solution

The fourth proportional to 16,878.78, 25,335.72 and 12,441.47 is: 18,675.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.78 : 25,335.72 = 12,441.47 : x
  2. Step 2: Convert to fraction form
    16,878.78/25,335.72 = 12,441.47/x
  3. Step 3: Cross multiply
    16,878.78x = 25,335.72 × 12,441.47
  4. Step 4: Simplify right side
    16,878.78x = 315,213,473.63
  5. Step 5: Solve for x
    x = 315,213,473.63/16,878.78
  6. Step 6: Final answer
    x = 18,675.13

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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.