Home / 13,472.18-18,529.92-10,813.76

Finding the Fourth Proportional to 13,472.18, 18,529.92 and 10,813.76

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Solution

The fourth proportional to 13,472.18, 18,529.92 and 10,813.76 is: 14,873.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.18 : 18,529.92 = 10,813.76 : x
  2. Step 2: Convert to fraction form
    13,472.18/18,529.92 = 10,813.76/x
  3. Step 3: Cross multiply
    13,472.18x = 18,529.92 × 10,813.76
  4. Step 4: Simplify right side
    13,472.18x = 200,378,107.70
  5. Step 5: Solve for x
    x = 200,378,107.70/13,472.18
  6. Step 6: Final answer
    x = 14,873.47

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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.