Home / 18,213.30-27,298.02-7,679.25

Finding the Fourth Proportional to 18,213.30, 27,298.02 and 7,679.25

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Solution

The fourth proportional to 18,213.30, 27,298.02 and 7,679.25 is: 11,509.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.30 : 27,298.02 = 7,679.25 : x
  2. Step 2: Convert to fraction form
    18,213.30/27,298.02 = 7,679.25/x
  3. Step 3: Cross multiply
    18,213.30x = 27,298.02 × 7,679.25
  4. Step 4: Simplify right side
    18,213.30x = 209,628,320.09
  5. Step 5: Solve for x
    x = 209,628,320.09/18,213.30
  6. Step 6: Final answer
    x = 11,509.63

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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.