Home / 13,288.13-19,834.98-11,711.76

Finding the Fourth Proportional to 13,288.13, 19,834.98 and 11,711.76

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Solution

The fourth proportional to 13,288.13, 19,834.98 and 11,711.76 is: 17,481.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.13 : 19,834.98 = 11,711.76 : x
  2. Step 2: Convert to fraction form
    13,288.13/19,834.98 = 11,711.76/x
  3. Step 3: Cross multiply
    13,288.13x = 19,834.98 × 11,711.76
  4. Step 4: Simplify right side
    13,288.13x = 232,302,528.73
  5. Step 5: Solve for x
    x = 232,302,528.73/13,288.13
  6. Step 6: Final answer
    x = 17,481.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.