Home / 18,278.09-27,417.18-4,427.09

Finding the Fourth Proportional to 18,278.09, 27,417.18 and 4,427.09

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Solution

The fourth proportional to 18,278.09, 27,417.18 and 4,427.09 is: 6,640.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.09 : 27,417.18 = 4,427.09 : x
  2. Step 2: Convert to fraction form
    18,278.09/27,417.18 = 4,427.09/x
  3. Step 3: Cross multiply
    18,278.09x = 27,417.18 × 4,427.09
  4. Step 4: Simplify right side
    18,278.09x = 121,378,323.41
  5. Step 5: Solve for x
    x = 121,378,323.41/18,278.09
  6. Step 6: Final answer
    x = 6,640.65

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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.