Home / 15,091.14-20,824.79-8,376.45

Finding the Fourth Proportional to 15,091.14, 20,824.79 and 8,376.45

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Solution

The fourth proportional to 15,091.14, 20,824.79 and 8,376.45 is: 11,558.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,091.14 : 20,824.79 = 8,376.45 : x
  2. Step 2: Convert to fraction form
    15,091.14/20,824.79 = 8,376.45/x
  3. Step 3: Cross multiply
    15,091.14x = 20,824.79 × 8,376.45
  4. Step 4: Simplify right side
    15,091.14x = 174,437,812.20
  5. Step 5: Solve for x
    x = 174,437,812.20/15,091.14
  6. Step 6: Final answer
    x = 11,558.96

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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.