Home / 9,940.86-13,718.09-5,464.59

Finding the Fourth Proportional to 9,940.86, 13,718.09 and 5,464.59

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Solution

The fourth proportional to 9,940.86, 13,718.09 and 5,464.59 is: 7,540.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,940.86 : 13,718.09 = 5,464.59 : x
  2. Step 2: Convert to fraction form
    9,940.86/13,718.09 = 5,464.59/x
  3. Step 3: Cross multiply
    9,940.86x = 13,718.09 × 5,464.59
  4. Step 4: Simplify right side
    9,940.86x = 74,963,710.11
  5. Step 5: Solve for x
    x = 74,963,710.11/9,940.86
  6. Step 6: Final answer
    x = 7,540.97

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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.