Home / 11,814.09-16,303.27-6,778.20

Finding the Fourth Proportional to 11,814.09, 16,303.27 and 6,778.20

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Solution

The fourth proportional to 11,814.09, 16,303.27 and 6,778.20 is: 9,353.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,814.09 : 16,303.27 = 6,778.20 : x
  2. Step 2: Convert to fraction form
    11,814.09/16,303.27 = 6,778.20/x
  3. Step 3: Cross multiply
    11,814.09x = 16,303.27 × 6,778.20
  4. Step 4: Simplify right side
    11,814.09x = 110,506,768.27
  5. Step 5: Solve for x
    x = 110,506,768.27/11,814.09
  6. Step 6: Final answer
    x = 9,353.81

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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.