Home / 11,972.53-16,521.45-6,867.78

Finding the Fourth Proportional to 11,972.53, 16,521.45 and 6,867.78

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Solution

The fourth proportional to 11,972.53, 16,521.45 and 6,867.78 is: 9,477.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.53 : 16,521.45 = 6,867.78 : x
  2. Step 2: Convert to fraction form
    11,972.53/16,521.45 = 6,867.78/x
  3. Step 3: Cross multiply
    11,972.53x = 16,521.45 × 6,867.78
  4. Step 4: Simplify right side
    11,972.53x = 113,465,683.88
  5. Step 5: Solve for x
    x = 113,465,683.88/11,972.53
  6. Step 6: Final answer
    x = 9,477.17

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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.