Home / 13,218.13-19,816.68-6,549.94

Finding the Fourth Proportional to 13,218.13, 19,816.68 and 6,549.94

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Solution

The fourth proportional to 13,218.13, 19,816.68 and 6,549.94 is: 9,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.13 : 19,816.68 = 6,549.94 : x
  2. Step 2: Convert to fraction form
    13,218.13/19,816.68 = 6,549.94/x
  3. Step 3: Cross multiply
    13,218.13x = 19,816.68 × 6,549.94
  4. Step 4: Simplify right side
    13,218.13x = 129,797,965.92
  5. Step 5: Solve for x
    x = 129,797,965.92/13,218.13
  6. Step 6: Final answer
    x = 9,819.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.