Home / 11,712.84-16,163.59-6,407.60

Finding the Fourth Proportional to 11,712.84, 16,163.59 and 6,407.60

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Solution

The fourth proportional to 11,712.84, 16,163.59 and 6,407.60 is: 8,842.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.84 : 16,163.59 = 6,407.60 : x
  2. Step 2: Convert to fraction form
    11,712.84/16,163.59 = 6,407.60/x
  3. Step 3: Cross multiply
    11,712.84x = 16,163.59 × 6,407.60
  4. Step 4: Simplify right side
    11,712.84x = 103,569,738.47
  5. Step 5: Solve for x
    x = 103,569,738.47/11,712.84
  6. Step 6: Final answer
    x = 8,842.41

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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.