Home / 6,974.48-9,624.78-4,143.21

Finding the Fourth Proportional to 6,974.48, 9,624.78 and 4,143.21

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Solution

The fourth proportional to 6,974.48, 9,624.78 and 4,143.21 is: 5,717.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,974.48 : 9,624.78 = 4,143.21 : x
  2. Step 2: Convert to fraction form
    6,974.48/9,624.78 = 4,143.21/x
  3. Step 3: Cross multiply
    6,974.48x = 9,624.78 × 4,143.21
  4. Step 4: Simplify right side
    6,974.48x = 39,877,484.74
  5. Step 5: Solve for x
    x = 39,877,484.74/6,974.48
  6. Step 6: Final answer
    x = 5,717.63

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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.