Home / 10,909.02-16,349.13-3,976.86

Finding the Fourth Proportional to 10,909.02, 16,349.13 and 3,976.86

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Solution

The fourth proportional to 10,909.02, 16,349.13 and 3,976.86 is: 5,960.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.02 : 16,349.13 = 3,976.86 : x
  2. Step 2: Convert to fraction form
    10,909.02/16,349.13 = 3,976.86/x
  3. Step 3: Cross multiply
    10,909.02x = 16,349.13 × 3,976.86
  4. Step 4: Simplify right side
    10,909.02x = 65,018,201.13
  5. Step 5: Solve for x
    x = 65,018,201.13/10,909.02
  6. Step 6: Final answer
    x = 5,960.04

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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.