Home / 18,360.78-25,341.54-11,654.40

Finding the Fourth Proportional to 18,360.78, 25,341.54 and 11,654.40

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Solution

The fourth proportional to 18,360.78, 25,341.54 and 11,654.40 is: 16,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.78 : 25,341.54 = 11,654.40 : x
  2. Step 2: Convert to fraction form
    18,360.78/25,341.54 = 11,654.40/x
  3. Step 3: Cross multiply
    18,360.78x = 25,341.54 × 11,654.40
  4. Step 4: Simplify right side
    18,360.78x = 295,340,443.78
  5. Step 5: Solve for x
    x = 295,340,443.78/18,360.78
  6. Step 6: Final answer
    x = 16,085.40

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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.