Home / 18,190.71-27,287.64-5,043.20

Finding the Fourth Proportional to 18,190.71, 27,287.64 and 5,043.20

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Solution

The fourth proportional to 18,190.71, 27,287.64 and 5,043.20 is: 7,565.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190.71 : 27,287.64 = 5,043.20 : x
  2. Step 2: Convert to fraction form
    18,190.71/27,287.64 = 5,043.20/x
  3. Step 3: Cross multiply
    18,190.71x = 27,287.64 × 5,043.20
  4. Step 4: Simplify right side
    18,190.71x = 137,616,889.61
  5. Step 5: Solve for x
    x = 137,616,889.61/18,190.71
  6. Step 6: Final answer
    x = 7,565.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.