Home / 12,330.36-18,499.68-6,776.64

Finding the Fourth Proportional to 12,330.36, 18,499.68 and 6,776.64

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Solution

The fourth proportional to 12,330.36, 18,499.68 and 6,776.64 is: 10,167.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,330.36 : 18,499.68 = 6,776.64 : x
  2. Step 2: Convert to fraction form
    12,330.36/18,499.68 = 6,776.64/x
  3. Step 3: Cross multiply
    12,330.36x = 18,499.68 × 6,776.64
  4. Step 4: Simplify right side
    12,330.36x = 125,365,671.48
  5. Step 5: Solve for x
    x = 125,365,671.48/12,330.36
  6. Step 6: Final answer
    x = 10,167.24

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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.