Home / 7,178.32-9,906.12-4,034.56

Finding the Fourth Proportional to 7,178.32, 9,906.12 and 4,034.56

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Solution

The fourth proportional to 7,178.32, 9,906.12 and 4,034.56 is: 5,567.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.32 : 9,906.12 = 4,034.56 : x
  2. Step 2: Convert to fraction form
    7,178.32/9,906.12 = 4,034.56/x
  3. Step 3: Cross multiply
    7,178.32x = 9,906.12 × 4,034.56
  4. Step 4: Simplify right side
    7,178.32x = 39,966,835.51
  5. Step 5: Solve for x
    x = 39,966,835.51/7,178.32
  6. Step 6: Final answer
    x = 5,567.71

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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.