Home / 13,909.96-19,195.77-8,247.48

Finding the Fourth Proportional to 13,909.96, 19,195.77 and 8,247.48

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Solution

The fourth proportional to 13,909.96, 19,195.77 and 8,247.48 is: 11,381.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.96 : 19,195.77 = 8,247.48 : x
  2. Step 2: Convert to fraction form
    13,909.96/19,195.77 = 8,247.48/x
  3. Step 3: Cross multiply
    13,909.96x = 19,195.77 × 8,247.48
  4. Step 4: Simplify right side
    13,909.96x = 158,316,729.16
  5. Step 5: Solve for x
    x = 158,316,729.16/13,909.96
  6. Step 6: Final answer
    x = 11,381.54

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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.