Home / 11,442.72-15,782.79-6,966.75

Finding the Fourth Proportional to 11,442.72, 15,782.79 and 6,966.75

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Solution

The fourth proportional to 11,442.72, 15,782.79 and 6,966.75 is: 9,609.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,442.72 : 15,782.79 = 6,966.75 : x
  2. Step 2: Convert to fraction form
    11,442.72/15,782.79 = 6,966.75/x
  3. Step 3: Cross multiply
    11,442.72x = 15,782.79 × 6,966.75
  4. Step 4: Simplify right side
    11,442.72x = 109,954,752.23
  5. Step 5: Solve for x
    x = 109,954,752.23/11,442.72
  6. Step 6: Final answer
    x = 9,609.14

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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.