Home / 13,663.25-18,849.80-8,348.84

Finding the Fourth Proportional to 13,663.25, 18,849.80 and 8,348.84

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Solution

The fourth proportional to 13,663.25, 18,849.80 and 8,348.84 is: 11,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.25 : 18,849.80 = 8,348.84 : x
  2. Step 2: Convert to fraction form
    13,663.25/18,849.80 = 8,348.84/x
  3. Step 3: Cross multiply
    13,663.25x = 18,849.80 × 8,348.84
  4. Step 4: Simplify right side
    13,663.25x = 157,373,890.86
  5. Step 5: Solve for x
    x = 157,373,890.86/13,663.25
  6. Step 6: Final answer
    x = 11,518.05

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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.