Home / 15,103.50-22,583.16-13,780.10

Finding the Fourth Proportional to 15,103.50, 22,583.16 and 13,780.10

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Solution

The fourth proportional to 15,103.50, 22,583.16 and 13,780.10 is: 20,604.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,103.50 : 22,583.16 = 13,780.10 : x
  2. Step 2: Convert to fraction form
    15,103.50/22,583.16 = 13,780.10/x
  3. Step 3: Cross multiply
    15,103.50x = 22,583.16 × 13,780.10
  4. Step 4: Simplify right side
    15,103.50x = 311,198,203.12
  5. Step 5: Solve for x
    x = 311,198,203.12/15,103.50
  6. Step 6: Final answer
    x = 20,604.38

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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.