Home / 13,366.24-18,433.44-8,645.60

Finding the Fourth Proportional to 13,366.24, 18,433.44 and 8,645.60

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Solution

The fourth proportional to 13,366.24, 18,433.44 and 8,645.60 is: 11,923.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.24 : 18,433.44 = 8,645.60 : x
  2. Step 2: Convert to fraction form
    13,366.24/18,433.44 = 8,645.60/x
  3. Step 3: Cross multiply
    13,366.24x = 18,433.44 × 8,645.60
  4. Step 4: Simplify right side
    13,366.24x = 159,368,148.86
  5. Step 5: Solve for x
    x = 159,368,148.86/13,366.24
  6. Step 6: Final answer
    x = 11,923.18

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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.