Home / 11,344.78-15,653.52-6,628.15

Finding the Fourth Proportional to 11,344.78, 15,653.52 and 6,628.15

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Solution

The fourth proportional to 11,344.78, 15,653.52 and 6,628.15 is: 9,145.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,344.78 : 15,653.52 = 6,628.15 : x
  2. Step 2: Convert to fraction form
    11,344.78/15,653.52 = 6,628.15/x
  3. Step 3: Cross multiply
    11,344.78x = 15,653.52 × 6,628.15
  4. Step 4: Simplify right side
    11,344.78x = 103,753,878.59
  5. Step 5: Solve for x
    x = 103,753,878.59/11,344.78
  6. Step 6: Final answer
    x = 9,145.52

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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.