Home / 12,366.72-17,066.28-6,777.36

Finding the Fourth Proportional to 12,366.72, 17,066.28 and 6,777.36

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Solution

The fourth proportional to 12,366.72, 17,066.28 and 6,777.36 is: 9,352.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366.72 : 17,066.28 = 6,777.36 : x
  2. Step 2: Convert to fraction form
    12,366.72/17,066.28 = 6,777.36/x
  3. Step 3: Cross multiply
    12,366.72x = 17,066.28 × 6,777.36
  4. Step 4: Simplify right side
    12,366.72x = 115,664,323.42
  5. Step 5: Solve for x
    x = 115,664,323.42/12,366.72
  6. Step 6: Final answer
    x = 9,352.87

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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.