Home / 18,818.24-28,227.36-6,507.20

Finding the Fourth Proportional to 18,818.24, 28,227.36 and 6,507.20

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Solution

The fourth proportional to 18,818.24, 28,227.36 and 6,507.20 is: 9,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.24 : 28,227.36 = 6,507.20 : x
  2. Step 2: Convert to fraction form
    18,818.24/28,227.36 = 6,507.20/x
  3. Step 3: Cross multiply
    18,818.24x = 28,227.36 × 6,507.20
  4. Step 4: Simplify right side
    18,818.24x = 183,681,076.99
  5. Step 5: Solve for x
    x = 183,681,076.99/18,818.24
  6. Step 6: Final answer
    x = 9,760.80

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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.