Home / 11,814.08-16,305.80-6,781.70

Finding the Fourth Proportional to 11,814.08, 16,305.80 and 6,781.70

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Solution

The fourth proportional to 11,814.08, 16,305.80 and 6,781.70 is: 9,360.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,814.08 : 16,305.80 = 6,781.70 : x
  2. Step 2: Convert to fraction form
    11,814.08/16,305.80 = 6,781.70/x
  3. Step 3: Cross multiply
    11,814.08x = 16,305.80 × 6,781.70
  4. Step 4: Simplify right side
    11,814.08x = 110,581,050.72
  5. Step 5: Solve for x
    x = 110,581,050.72/11,814.08
  6. Step 6: Final answer
    x = 9,360.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.