Home / 14,961.04-20,638.65-11,418.10

Finding the Fourth Proportional to 14,961.04, 20,638.65 and 11,418.10

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Solution

The fourth proportional to 14,961.04, 20,638.65 and 11,418.10 is: 15,751.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.04 : 20,638.65 = 11,418.10 : x
  2. Step 2: Convert to fraction form
    14,961.04/20,638.65 = 11,418.10/x
  3. Step 3: Cross multiply
    14,961.04x = 20,638.65 × 11,418.10
  4. Step 4: Simplify right side
    14,961.04x = 235,654,112.47
  5. Step 5: Solve for x
    x = 235,654,112.47/14,961.04
  6. Step 6: Final answer
    x = 15,751.19

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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.