Home / 11,134.93-15,356.67-7,942.15

Finding the Fourth Proportional to 11,134.93, 15,356.67 and 7,942.15

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Solution

The fourth proportional to 11,134.93, 15,356.67 and 7,942.15 is: 10,953.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,134.93 : 15,356.67 = 7,942.15 : x
  2. Step 2: Convert to fraction form
    11,134.93/15,356.67 = 7,942.15/x
  3. Step 3: Cross multiply
    11,134.93x = 15,356.67 × 7,942.15
  4. Step 4: Simplify right side
    11,134.93x = 121,964,899.86
  5. Step 5: Solve for x
    x = 121,964,899.86/11,134.93
  6. Step 6: Final answer
    x = 10,953.36

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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.