Home / 11,399.94-15,732.02-6,555.40

Finding the Fourth Proportional to 11,399.94, 15,732.02 and 6,555.40

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Solution

The fourth proportional to 11,399.94, 15,732.02 and 6,555.40 is: 9,046.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,399.94 : 15,732.02 = 6,555.40 : x
  2. Step 2: Convert to fraction form
    11,399.94/15,732.02 = 6,555.40/x
  3. Step 3: Cross multiply
    11,399.94x = 15,732.02 × 6,555.40
  4. Step 4: Simplify right side
    11,399.94x = 103,129,660.97
  5. Step 5: Solve for x
    x = 103,129,660.97/11,399.94
  6. Step 6: Final answer
    x = 9,046.51

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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.