Home / 10,979.80-16,464.90-4,403.80

Finding the Fourth Proportional to 10,979.80, 16,464.90 and 4,403.80

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Solution

The fourth proportional to 10,979.80, 16,464.90 and 4,403.80 is: 6,603.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.80 : 16,464.90 = 4,403.80 : x
  2. Step 2: Convert to fraction form
    10,979.80/16,464.90 = 4,403.80/x
  3. Step 3: Cross multiply
    10,979.80x = 16,464.90 × 4,403.80
  4. Step 4: Simplify right side
    10,979.80x = 72,508,126.62
  5. Step 5: Solve for x
    x = 72,508,126.62/10,979.80
  6. Step 6: Final answer
    x = 6,603.77

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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.