Home / 11,334.93-15,639.78-6,857.79

Finding the Fourth Proportional to 11,334.93, 15,639.78 and 6,857.79

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Solution

The fourth proportional to 11,334.93, 15,639.78 and 6,857.79 is: 9,462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,334.93 : 15,639.78 = 6,857.79 : x
  2. Step 2: Convert to fraction form
    11,334.93/15,639.78 = 6,857.79/x
  3. Step 3: Cross multiply
    11,334.93x = 15,639.78 × 6,857.79
  4. Step 4: Simplify right side
    11,334.93x = 107,254,326.89
  5. Step 5: Solve for x
    x = 107,254,326.89/11,334.93
  6. Step 6: Final answer
    x = 9,462.28

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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.