Home / 18,631.15-27,938.52-9,864.01

Finding the Fourth Proportional to 18,631.15, 27,938.52 and 9,864.01

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Solution

The fourth proportional to 18,631.15, 27,938.52 and 9,864.01 is: 14,791.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.15 : 27,938.52 = 9,864.01 : x
  2. Step 2: Convert to fraction form
    18,631.15/27,938.52 = 9,864.01/x
  3. Step 3: Cross multiply
    18,631.15x = 27,938.52 × 9,864.01
  4. Step 4: Simplify right side
    18,631.15x = 275,585,875.59
  5. Step 5: Solve for x
    x = 275,585,875.59/18,631.15
  6. Step 6: Final answer
    x = 14,791.67

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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.