Home / 18,210.64-27,308.16-7,685.36

Finding the Fourth Proportional to 18,210.64, 27,308.16 and 7,685.36

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Solution

The fourth proportional to 18,210.64, 27,308.16 and 7,685.36 is: 11,524.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210.64 : 27,308.16 = 7,685.36 : x
  2. Step 2: Convert to fraction form
    18,210.64/27,308.16 = 7,685.36/x
  3. Step 3: Cross multiply
    18,210.64x = 27,308.16 × 7,685.36
  4. Step 4: Simplify right side
    18,210.64x = 209,873,040.54
  5. Step 5: Solve for x
    x = 209,873,040.54/18,210.64
  6. Step 6: Final answer
    x = 11,524.75

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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.