Home / 13,276.66-18,322.31-7,308.88

Finding the Fourth Proportional to 13,276.66, 18,322.31 and 7,308.88

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Solution

The fourth proportional to 13,276.66, 18,322.31 and 7,308.88 is: 10,086.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.66 : 18,322.31 = 7,308.88 : x
  2. Step 2: Convert to fraction form
    13,276.66/18,322.31 = 7,308.88/x
  3. Step 3: Cross multiply
    13,276.66x = 18,322.31 × 7,308.88
  4. Step 4: Simplify right side
    13,276.66x = 133,915,568.55
  5. Step 5: Solve for x
    x = 133,915,568.55/13,276.66
  6. Step 6: Final answer
    x = 10,086.54

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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.