Home / 15,196.06-20,972.55-8,909.02

Finding the Fourth Proportional to 15,196.06, 20,972.55 and 8,909.02

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Solution

The fourth proportional to 15,196.06, 20,972.55 and 8,909.02 is: 12,295.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196.06 : 20,972.55 = 8,909.02 : x
  2. Step 2: Convert to fraction form
    15,196.06/20,972.55 = 8,909.02/x
  3. Step 3: Cross multiply
    15,196.06x = 20,972.55 × 8,909.02
  4. Step 4: Simplify right side
    15,196.06x = 186,844,867.40
  5. Step 5: Solve for x
    x = 186,844,867.40/15,196.06
  6. Step 6: Final answer
    x = 12,295.61

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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.