Home / 18,530.50-27,798.63-6,221.38

Finding the Fourth Proportional to 18,530.50, 27,798.63 and 6,221.38

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Solution

The fourth proportional to 18,530.50, 27,798.63 and 6,221.38 is: 9,333.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,530.50 : 27,798.63 = 6,221.38 : x
  2. Step 2: Convert to fraction form
    18,530.50/27,798.63 = 6,221.38/x
  3. Step 3: Cross multiply
    18,530.50x = 27,798.63 × 6,221.38
  4. Step 4: Simplify right side
    18,530.50x = 172,945,840.71
  5. Step 5: Solve for x
    x = 172,945,840.71/18,530.50
  6. Step 6: Final answer
    x = 9,333.04

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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.