Home / 18,210.90-27,320.46-5,561.79

Finding the Fourth Proportional to 18,210.90, 27,320.46 and 5,561.79

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Solution

The fourth proportional to 18,210.90, 27,320.46 and 5,561.79 is: 8,343.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210.90 : 27,320.46 = 5,561.79 : x
  2. Step 2: Convert to fraction form
    18,210.90/27,320.46 = 5,561.79/x
  3. Step 3: Cross multiply
    18,210.90x = 27,320.46 × 5,561.79
  4. Step 4: Simplify right side
    18,210.90x = 151,950,661.22
  5. Step 5: Solve for x
    x = 151,950,661.22/18,210.90
  6. Step 6: Final answer
    x = 8,343.94

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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.