Home / 10,371.52-14,313.92-6,391.84

Finding the Fourth Proportional to 10,371.52, 14,313.92 and 6,391.84

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Solution

The fourth proportional to 10,371.52, 14,313.92 and 6,391.84 is: 8,821.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.52 : 14,313.92 = 6,391.84 : x
  2. Step 2: Convert to fraction form
    10,371.52/14,313.92 = 6,391.84/x
  3. Step 3: Cross multiply
    10,371.52x = 14,313.92 × 6,391.84
  4. Step 4: Simplify right side
    10,371.52x = 91,492,286.41
  5. Step 5: Solve for x
    x = 91,492,286.41/10,371.52
  6. Step 6: Final answer
    x = 8,821.49

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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.