Home / 9,104.78-12,546.12-6,980.36

Finding the Fourth Proportional to 9,104.78, 12,546.12 and 6,980.36

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Solution

The fourth proportional to 9,104.78, 12,546.12 and 6,980.36 is: 9,618.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,104.78 : 12,546.12 = 6,980.36 : x
  2. Step 2: Convert to fraction form
    9,104.78/12,546.12 = 6,980.36/x
  3. Step 3: Cross multiply
    9,104.78x = 12,546.12 × 6,980.36
  4. Step 4: Simplify right side
    9,104.78x = 87,576,434.20
  5. Step 5: Solve for x
    x = 87,576,434.20/9,104.78
  6. Step 6: Final answer
    x = 9,618.73

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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.