Home / 13,909.08-19,196.28-8,245.08

Finding the Fourth Proportional to 13,909.08, 19,196.28 and 8,245.08

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Solution

The fourth proportional to 13,909.08, 19,196.28 and 8,245.08 is: 11,379.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.08 : 19,196.28 = 8,245.08 : x
  2. Step 2: Convert to fraction form
    13,909.08/19,196.28 = 8,245.08/x
  3. Step 3: Cross multiply
    13,909.08x = 19,196.28 × 8,245.08
  4. Step 4: Simplify right side
    13,909.08x = 158,274,864.30
  5. Step 5: Solve for x
    x = 158,274,864.30/13,909.08
  6. Step 6: Final answer
    x = 11,379.25

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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.