Home / 15,155.06-22,716.80-8,909.96

Finding the Fourth Proportional to 15,155.06, 22,716.80 and 8,909.96

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Solution

The fourth proportional to 15,155.06, 22,716.80 and 8,909.96 is: 13,355.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,155.06 : 22,716.80 = 8,909.96 : x
  2. Step 2: Convert to fraction form
    15,155.06/22,716.80 = 8,909.96/x
  3. Step 3: Cross multiply
    15,155.06x = 22,716.80 × 8,909.96
  4. Step 4: Simplify right side
    15,155.06x = 202,405,779.33
  5. Step 5: Solve for x
    x = 202,405,779.33/15,155.06
  6. Step 6: Final answer
    x = 13,355.66

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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.