Home / 13,806.48-19,041.68-8,491.76

Finding the Fourth Proportional to 13,806.48, 19,041.68 and 8,491.76

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Solution

The fourth proportional to 13,806.48, 19,041.68 and 8,491.76 is: 11,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.48 : 19,041.68 = 8,491.76 : x
  2. Step 2: Convert to fraction form
    13,806.48/19,041.68 = 8,491.76/x
  3. Step 3: Cross multiply
    13,806.48x = 19,041.68 × 8,491.76
  4. Step 4: Simplify right side
    13,806.48x = 161,697,376.56
  5. Step 5: Solve for x
    x = 161,697,376.56/13,806.48
  6. Step 6: Final answer
    x = 11,711.70

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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.