Home / 11,131.84-16,690.47-4,551.40

Finding the Fourth Proportional to 11,131.84, 16,690.47 and 4,551.40

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Solution

The fourth proportional to 11,131.84, 16,690.47 and 4,551.40 is: 6,824.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.84 : 16,690.47 = 4,551.40 : x
  2. Step 2: Convert to fraction form
    11,131.84/16,690.47 = 4,551.40/x
  3. Step 3: Cross multiply
    11,131.84x = 16,690.47 × 4,551.40
  4. Step 4: Simplify right side
    11,131.84x = 75,965,005.16
  5. Step 5: Solve for x
    x = 75,965,005.16/11,131.84
  6. Step 6: Final answer
    x = 6,824.12

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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.