Home / 8,712.24-12,016.73-5,356.94

Finding the Fourth Proportional to 8,712.24, 12,016.73 and 5,356.94

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Solution

The fourth proportional to 8,712.24, 12,016.73 and 5,356.94 is: 7,388.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.24 : 12,016.73 = 5,356.94 : x
  2. Step 2: Convert to fraction form
    8,712.24/12,016.73 = 5,356.94/x
  3. Step 3: Cross multiply
    8,712.24x = 12,016.73 × 5,356.94
  4. Step 4: Simplify right side
    8,712.24x = 64,372,814.74
  5. Step 5: Solve for x
    x = 64,372,814.74/8,712.24
  6. Step 6: Final answer
    x = 7,388.78

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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.