Home / 7,783.39-11,669.59-3,885.04

Finding the Fourth Proportional to 7,783.39, 11,669.59 and 3,885.04

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Solution

The fourth proportional to 7,783.39, 11,669.59 and 3,885.04 is: 5,824.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783.39 : 11,669.59 = 3,885.04 : x
  2. Step 2: Convert to fraction form
    7,783.39/11,669.59 = 3,885.04/x
  3. Step 3: Cross multiply
    7,783.39x = 11,669.59 × 3,885.04
  4. Step 4: Simplify right side
    7,783.39x = 45,336,823.93
  5. Step 5: Solve for x
    x = 45,336,823.93/7,783.39
  6. Step 6: Final answer
    x = 5,824.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.