Home / 13,663.83-18,855.14-8,073.75

Finding the Fourth Proportional to 13,663.83, 18,855.14 and 8,073.75

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Solution

The fourth proportional to 13,663.83, 18,855.14 and 8,073.75 is: 11,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.83 : 18,855.14 = 8,073.75 : x
  2. Step 2: Convert to fraction form
    13,663.83/18,855.14 = 8,073.75/x
  3. Step 3: Cross multiply
    13,663.83x = 18,855.14 × 8,073.75
  4. Step 4: Simplify right side
    13,663.83x = 152,231,646.21
  5. Step 5: Solve for x
    x = 152,231,646.21/13,663.83
  6. Step 6: Final answer
    x = 11,141.21

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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.