Home / 17,125.38-25,688.79-5,438.34

Finding the Fourth Proportional to 17,125.38, 25,688.79 and 5,438.34

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Solution

The fourth proportional to 17,125.38, 25,688.79 and 5,438.34 is: 8,157.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,125.38 : 25,688.79 = 5,438.34 : x
  2. Step 2: Convert to fraction form
    17,125.38/25,688.79 = 5,438.34/x
  3. Step 3: Cross multiply
    17,125.38x = 25,688.79 × 5,438.34
  4. Step 4: Simplify right side
    17,125.38x = 139,704,374.21
  5. Step 5: Solve for x
    x = 139,704,374.21/17,125.38
  6. Step 6: Final answer
    x = 8,157.74

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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.