Home / 25,138.66-37,707.42-12,655.34

Finding the Fourth Proportional to 25,138.66, 37,707.42 and 12,655.34

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Solution

The fourth proportional to 25,138.66, 37,707.42 and 12,655.34 is: 18,982.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,138.66 : 37,707.42 = 12,655.34 : x
  2. Step 2: Convert to fraction form
    25,138.66/37,707.42 = 12,655.34/x
  3. Step 3: Cross multiply
    25,138.66x = 37,707.42 × 12,655.34
  4. Step 4: Simplify right side
    25,138.66x = 477,200,114.17
  5. Step 5: Solve for x
    x = 477,200,114.17/25,138.66
  6. Step 6: Final answer
    x = 18,982.72

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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.