Home / 11,440.84-15,788.39-6,405.27

Finding the Fourth Proportional to 11,440.84, 15,788.39 and 6,405.27

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Solution

The fourth proportional to 11,440.84, 15,788.39 and 6,405.27 is: 8,839.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.84 : 15,788.39 = 6,405.27 : x
  2. Step 2: Convert to fraction form
    11,440.84/15,788.39 = 6,405.27/x
  3. Step 3: Cross multiply
    11,440.84x = 15,788.39 × 6,405.27
  4. Step 4: Simplify right side
    11,440.84x = 101,128,916.83
  5. Step 5: Solve for x
    x = 101,128,916.83/11,440.84
  6. Step 6: Final answer
    x = 8,839.29

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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.