Home / 11,388.19-15,716.43-6,353.17

Finding the Fourth Proportional to 11,388.19, 15,716.43 and 6,353.17

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Solution

The fourth proportional to 11,388.19, 15,716.43 and 6,353.17 is: 8,767.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.19 : 15,716.43 = 6,353.17 : x
  2. Step 2: Convert to fraction form
    11,388.19/15,716.43 = 6,353.17/x
  3. Step 3: Cross multiply
    11,388.19x = 15,716.43 × 6,353.17
  4. Step 4: Simplify right side
    11,388.19x = 99,849,151.58
  5. Step 5: Solve for x
    x = 99,849,151.58/11,388.19
  6. Step 6: Final answer
    x = 8,767.78

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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.