Home / 18,795.75-25,938.14-11,242.40

Finding the Fourth Proportional to 18,795.75, 25,938.14 and 11,242.40

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Solution

The fourth proportional to 18,795.75, 25,938.14 and 11,242.40 is: 15,514.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.75 : 25,938.14 = 11,242.40 : x
  2. Step 2: Convert to fraction form
    18,795.75/25,938.14 = 11,242.40/x
  3. Step 3: Cross multiply
    18,795.75x = 25,938.14 × 11,242.40
  4. Step 4: Simplify right side
    18,795.75x = 291,606,856.50
  5. Step 5: Solve for x
    x = 291,606,856.50/18,795.75
  6. Step 6: Final answer
    x = 15,514.51

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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.