Home / 12,909.08-19,327.26-8,217.56

Finding the Fourth Proportional to 12,909.08, 19,327.26 and 8,217.56

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Solution

The fourth proportional to 12,909.08, 19,327.26 and 8,217.56 is: 12,303.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909.08 : 19,327.26 = 8,217.56 : x
  2. Step 2: Convert to fraction form
    12,909.08/19,327.26 = 8,217.56/x
  3. Step 3: Cross multiply
    12,909.08x = 19,327.26 × 8,217.56
  4. Step 4: Simplify right side
    12,909.08x = 158,822,918.69
  5. Step 5: Solve for x
    x = 158,822,918.69/12,909.08
  6. Step 6: Final answer
    x = 12,303.19

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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.