Home / 13,287.44-18,336.46-7,319.66

Finding the Fourth Proportional to 13,287.44, 18,336.46 and 7,319.66

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Solution

The fourth proportional to 13,287.44, 18,336.46 and 7,319.66 is: 10,101.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287.44 : 18,336.46 = 7,319.66 : x
  2. Step 2: Convert to fraction form
    13,287.44/18,336.46 = 7,319.66/x
  3. Step 3: Cross multiply
    13,287.44x = 18,336.46 × 7,319.66
  4. Step 4: Simplify right side
    13,287.44x = 134,216,652.80
  5. Step 5: Solve for x
    x = 134,216,652.80/13,287.44
  6. Step 6: Final answer
    x = 10,101.02

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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.