Home / 7,975.95-11,007.11-4,439.68

Finding the Fourth Proportional to 7,975.95, 11,007.11 and 4,439.68

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Solution

The fourth proportional to 7,975.95, 11,007.11 and 4,439.68 is: 6,126.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.95 : 11,007.11 = 4,439.68 : x
  2. Step 2: Convert to fraction form
    7,975.95/11,007.11 = 4,439.68/x
  3. Step 3: Cross multiply
    7,975.95x = 11,007.11 × 4,439.68
  4. Step 4: Simplify right side
    7,975.95x = 48,868,046.12
  5. Step 5: Solve for x
    x = 48,868,046.12/7,975.95
  6. Step 6: Final answer
    x = 6,126.92

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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.