Home / 13,248.27-19,919.76-12,220.99

Finding the Fourth Proportional to 13,248.27, 19,919.76 and 12,220.99

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Solution

The fourth proportional to 13,248.27, 19,919.76 and 12,220.99 is: 18,375.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.27 : 19,919.76 = 12,220.99 : x
  2. Step 2: Convert to fraction form
    13,248.27/19,919.76 = 12,220.99/x
  3. Step 3: Cross multiply
    13,248.27x = 19,919.76 × 12,220.99
  4. Step 4: Simplify right side
    13,248.27x = 243,439,092.13
  5. Step 5: Solve for x
    x = 243,439,092.13/13,248.27
  6. Step 6: Final answer
    x = 18,375.16

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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.