Home / 18,270.78-27,381.33-9,487.50

Finding the Fourth Proportional to 18,270.78, 27,381.33 and 9,487.50

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Solution

The fourth proportional to 18,270.78, 27,381.33 and 9,487.50 is: 14,218.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.78 : 27,381.33 = 9,487.50 : x
  2. Step 2: Convert to fraction form
    18,270.78/27,381.33 = 9,487.50/x
  3. Step 3: Cross multiply
    18,270.78x = 27,381.33 × 9,487.50
  4. Step 4: Simplify right side
    18,270.78x = 259,780,368.38
  5. Step 5: Solve for x
    x = 259,780,368.38/18,270.78
  6. Step 6: Final answer
    x = 14,218.35

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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.