Home / 8,942.74-12,332.39-5,357.12

Finding the Fourth Proportional to 8,942.74, 12,332.39 and 5,357.12

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Solution

The fourth proportional to 8,942.74, 12,332.39 and 5,357.12 is: 7,387.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,942.74 : 12,332.39 = 5,357.12 : x
  2. Step 2: Convert to fraction form
    8,942.74/12,332.39 = 5,357.12/x
  3. Step 3: Cross multiply
    8,942.74x = 12,332.39 × 5,357.12
  4. Step 4: Simplify right side
    8,942.74x = 66,066,093.12
  5. Step 5: Solve for x
    x = 66,066,093.12/8,942.74
  6. Step 6: Final answer
    x = 7,387.68

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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.