Home / 11,335.28-15,645.78-7,356.18

Finding the Fourth Proportional to 11,335.28, 15,645.78 and 7,356.18

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Solution

The fourth proportional to 11,335.28, 15,645.78 and 7,356.18 is: 10,153.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,335.28 : 15,645.78 = 7,356.18 : x
  2. Step 2: Convert to fraction form
    11,335.28/15,645.78 = 7,356.18/x
  3. Step 3: Cross multiply
    11,335.28x = 15,645.78 × 7,356.18
  4. Step 4: Simplify right side
    11,335.28x = 115,093,173.92
  5. Step 5: Solve for x
    x = 115,093,173.92/11,335.28
  6. Step 6: Final answer
    x = 10,153.54

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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.