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Finding the Fourth Proportional to 12,500.79, 18,751.19 and 3,735.42

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Solution

The fourth proportional to 12,500.79, 18,751.19 and 3,735.42 is: 5,603.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.79 : 18,751.19 = 3,735.42 : x
  2. Step 2: Convert to fraction form
    12,500.79/18,751.19 = 3,735.42/x
  3. Step 3: Cross multiply
    12,500.79x = 18,751.19 × 3,735.42
  4. Step 4: Simplify right side
    12,500.79x = 70,043,551.47
  5. Step 5: Solve for x
    x = 70,043,551.47/12,500.79
  6. Step 6: Final answer
    x = 5,603.13

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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.