Home / 13,760.24-18,989.52-8,095.40

Finding the Fourth Proportional to 13,760.24, 18,989.52 and 8,095.40

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Solution

The fourth proportional to 13,760.24, 18,989.52 and 8,095.40 is: 11,171.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.24 : 18,989.52 = 8,095.40 : x
  2. Step 2: Convert to fraction form
    13,760.24/18,989.52 = 8,095.40/x
  3. Step 3: Cross multiply
    13,760.24x = 18,989.52 × 8,095.40
  4. Step 4: Simplify right side
    13,760.24x = 153,727,760.21
  5. Step 5: Solve for x
    x = 153,727,760.21/13,760.24
  6. Step 6: Final answer
    x = 11,171.88

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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.