Home / 13,288.24-18,336.54-9,753.40

Finding the Fourth Proportional to 13,288.24, 18,336.54 and 9,753.40

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Solution

The fourth proportional to 13,288.24, 18,336.54 and 9,753.40 is: 13,458.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.24 : 18,336.54 = 9,753.40 : x
  2. Step 2: Convert to fraction form
    13,288.24/18,336.54 = 9,753.40/x
  3. Step 3: Cross multiply
    13,288.24x = 18,336.54 × 9,753.40
  4. Step 4: Simplify right side
    13,288.24x = 178,843,609.24
  5. Step 5: Solve for x
    x = 178,843,609.24/13,288.24
  6. Step 6: Final answer
    x = 13,458.79

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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.