Home / 13,565.60-18,722.80-8,262.48

Finding the Fourth Proportional to 13,565.60, 18,722.80 and 8,262.48

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Solution

The fourth proportional to 13,565.60, 18,722.80 and 8,262.48 is: 11,403.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.60 : 18,722.80 = 8,262.48 : x
  2. Step 2: Convert to fraction form
    13,565.60/18,722.80 = 8,262.48/x
  3. Step 3: Cross multiply
    13,565.60x = 18,722.80 × 8,262.48
  4. Step 4: Simplify right side
    13,565.60x = 154,696,760.54
  5. Step 5: Solve for x
    x = 154,696,760.54/13,565.60
  6. Step 6: Final answer
    x = 11,403.61

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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.