Home / 16,879.48-25,295.44-12,915.40

Finding the Fourth Proportional to 16,879.48, 25,295.44 and 12,915.40

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Solution

The fourth proportional to 16,879.48, 25,295.44 and 12,915.40 is: 19,354.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.48 : 25,295.44 = 12,915.40 : x
  2. Step 2: Convert to fraction form
    16,879.48/25,295.44 = 12,915.40/x
  3. Step 3: Cross multiply
    16,879.48x = 25,295.44 × 12,915.40
  4. Step 4: Simplify right side
    16,879.48x = 326,700,725.78
  5. Step 5: Solve for x
    x = 326,700,725.78/16,879.48
  6. Step 6: Final answer
    x = 19,354.90

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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.