Home / 17,821.28-26,735.04-7,960.40

Finding the Fourth Proportional to 17,821.28, 26,735.04 and 7,960.40

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Solution

The fourth proportional to 17,821.28, 26,735.04 and 7,960.40 is: 11,941.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,821.28 : 26,735.04 = 7,960.40 : x
  2. Step 2: Convert to fraction form
    17,821.28/26,735.04 = 7,960.40/x
  3. Step 3: Cross multiply
    17,821.28x = 26,735.04 × 7,960.40
  4. Step 4: Simplify right side
    17,821.28x = 212,821,612.42
  5. Step 5: Solve for x
    x = 212,821,612.42/17,821.28
  6. Step 6: Final answer
    x = 11,941.99

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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.