Home / 15,895.06-21,934.40-8,724.80

Finding the Fourth Proportional to 15,895.06, 21,934.40 and 8,724.80

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Solution

The fourth proportional to 15,895.06, 21,934.40 and 8,724.80 is: 12,039.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,895.06 : 21,934.40 = 8,724.80 : x
  2. Step 2: Convert to fraction form
    15,895.06/21,934.40 = 8,724.80/x
  3. Step 3: Cross multiply
    15,895.06x = 21,934.40 × 8,724.80
  4. Step 4: Simplify right side
    15,895.06x = 191,373,253.12
  5. Step 5: Solve for x
    x = 191,373,253.12/15,895.06
  6. Step 6: Final answer
    x = 12,039.79

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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.