Home / 18,360.78-25,339.33-10,404.96

Finding the Fourth Proportional to 18,360.78, 25,339.33 and 10,404.96

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Solution

The fourth proportional to 18,360.78, 25,339.33 and 10,404.96 is: 14,359.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.78 : 25,339.33 = 10,404.96 : x
  2. Step 2: Convert to fraction form
    18,360.78/25,339.33 = 10,404.96/x
  3. Step 3: Cross multiply
    18,360.78x = 25,339.33 × 10,404.96
  4. Step 4: Simplify right side
    18,360.78x = 263,654,588.38
  5. Step 5: Solve for x
    x = 263,654,588.38/18,360.78
  6. Step 6: Final answer
    x = 14,359.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.