Home / 19,311.72-26,639.04-11,352.48

Finding the Fourth Proportional to 19,311.72, 26,639.04 and 11,352.48

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Solution

The fourth proportional to 19,311.72, 26,639.04 and 11,352.48 is: 15,659.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,311.72 : 26,639.04 = 11,352.48 : x
  2. Step 2: Convert to fraction form
    19,311.72/26,639.04 = 11,352.48/x
  3. Step 3: Cross multiply
    19,311.72x = 26,639.04 × 11,352.48
  4. Step 4: Simplify right side
    19,311.72x = 302,419,168.82
  5. Step 5: Solve for x
    x = 302,419,168.82/19,311.72
  6. Step 6: Final answer
    x = 15,659.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.