Home / 9,913.78-13,680.07-5,934.81

Finding the Fourth Proportional to 9,913.78, 13,680.07 and 5,934.81

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Solution

The fourth proportional to 9,913.78, 13,680.07 and 5,934.81 is: 8,189.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.78 : 13,680.07 = 5,934.81 : x
  2. Step 2: Convert to fraction form
    9,913.78/13,680.07 = 5,934.81/x
  3. Step 3: Cross multiply
    9,913.78x = 13,680.07 × 5,934.81
  4. Step 4: Simplify right side
    9,913.78x = 81,188,616.24
  5. Step 5: Solve for x
    x = 81,188,616.24/9,913.78
  6. Step 6: Final answer
    x = 8,189.47

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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.