Home / 15,440.56-21,308.04-8,366.99

Finding the Fourth Proportional to 15,440.56, 21,308.04 and 8,366.99

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Solution

The fourth proportional to 15,440.56, 21,308.04 and 8,366.99 is: 11,546.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.56 : 21,308.04 = 8,366.99 : x
  2. Step 2: Convert to fraction form
    15,440.56/21,308.04 = 8,366.99/x
  3. Step 3: Cross multiply
    15,440.56x = 21,308.04 × 8,366.99
  4. Step 4: Simplify right side
    15,440.56x = 178,284,157.60
  5. Step 5: Solve for x
    x = 178,284,157.60/15,440.56
  6. Step 6: Final answer
    x = 11,546.48

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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.