Home / 9,188.78-13,783.30-2,615.12

Finding the Fourth Proportional to 9,188.78, 13,783.30 and 2,615.12

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Solution

The fourth proportional to 9,188.78, 13,783.30 and 2,615.12 is: 3,922.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.78 : 13,783.30 = 2,615.12 : x
  2. Step 2: Convert to fraction form
    9,188.78/13,783.30 = 2,615.12/x
  3. Step 3: Cross multiply
    9,188.78x = 13,783.30 × 2,615.12
  4. Step 4: Simplify right side
    9,188.78x = 36,044,959.73
  5. Step 5: Solve for x
    x = 36,044,959.73/9,188.78
  6. Step 6: Final answer
    x = 3,922.72

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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.