Home / 18,427.60-27,631.59-7,328.56

Finding the Fourth Proportional to 18,427.60, 27,631.59 and 7,328.56

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Solution

The fourth proportional to 18,427.60, 27,631.59 and 7,328.56 is: 10,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.60 : 27,631.59 = 7,328.56 : x
  2. Step 2: Convert to fraction form
    18,427.60/27,631.59 = 7,328.56/x
  3. Step 3: Cross multiply
    18,427.60x = 27,631.59 × 7,328.56
  4. Step 4: Simplify right side
    18,427.60x = 202,499,765.21
  5. Step 5: Solve for x
    x = 202,499,765.21/18,427.60
  6. Step 6: Final answer
    x = 10,988.94

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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.