Home / 17,126.48-25,690.20-5,440.40

Finding the Fourth Proportional to 17,126.48, 25,690.20 and 5,440.40

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Solution

The fourth proportional to 17,126.48, 25,690.20 and 5,440.40 is: 8,160.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,126.48 : 25,690.20 = 5,440.40 : x
  2. Step 2: Convert to fraction form
    17,126.48/25,690.20 = 5,440.40/x
  3. Step 3: Cross multiply
    17,126.48x = 25,690.20 × 5,440.40
  4. Step 4: Simplify right side
    17,126.48x = 139,764,964.08
  5. Step 5: Solve for x
    x = 139,764,964.08/17,126.48
  6. Step 6: Final answer
    x = 8,160.75

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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.