Home / 7,478.79-11,217.29-3,975.95

Finding the Fourth Proportional to 7,478.79, 11,217.29 and 3,975.95

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Solution

The fourth proportional to 7,478.79, 11,217.29 and 3,975.95 is: 5,963.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.79 : 11,217.29 = 3,975.95 : x
  2. Step 2: Convert to fraction form
    7,478.79/11,217.29 = 3,975.95/x
  3. Step 3: Cross multiply
    7,478.79x = 11,217.29 × 3,975.95
  4. Step 4: Simplify right side
    7,478.79x = 44,599,308.21
  5. Step 5: Solve for x
    x = 44,599,308.21/7,478.79
  6. Step 6: Final answer
    x = 5,963.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.