Home / 13,437.60-18,544.16-8,131.52

Finding the Fourth Proportional to 13,437.60, 18,544.16 and 8,131.52

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Solution

The fourth proportional to 13,437.60, 18,544.16 and 8,131.52 is: 11,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.60 : 18,544.16 = 8,131.52 : x
  2. Step 2: Convert to fraction form
    13,437.60/18,544.16 = 8,131.52/x
  3. Step 3: Cross multiply
    13,437.60x = 18,544.16 × 8,131.52
  4. Step 4: Simplify right side
    13,437.60x = 150,792,207.92
  5. Step 5: Solve for x
    x = 150,792,207.92/13,437.60
  6. Step 6: Final answer
    x = 11,221.66

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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.