Home / 16,879.86-25,319.70-9,379.88

Finding the Fourth Proportional to 16,879.86, 25,319.70 and 9,379.88

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Solution

The fourth proportional to 16,879.86, 25,319.70 and 9,379.88 is: 14,069.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.86 : 25,319.70 = 9,379.88 : x
  2. Step 2: Convert to fraction form
    16,879.86/25,319.70 = 9,379.88/x
  3. Step 3: Cross multiply
    16,879.86x = 25,319.70 × 9,379.88
  4. Step 4: Simplify right side
    16,879.86x = 237,495,747.64
  5. Step 5: Solve for x
    x = 237,495,747.64/16,879.86
  6. Step 6: Final answer
    x = 14,069.77

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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.