Home / 13,375.58-18,462.30-8,660.18

Finding the Fourth Proportional to 13,375.58, 18,462.30 and 8,660.18

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Solution

The fourth proportional to 13,375.58, 18,462.30 and 8,660.18 is: 11,953.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.58 : 18,462.30 = 8,660.18 : x
  2. Step 2: Convert to fraction form
    13,375.58/18,462.30 = 8,660.18/x
  3. Step 3: Cross multiply
    13,375.58x = 18,462.30 × 8,660.18
  4. Step 4: Simplify right side
    13,375.58x = 159,886,841.21
  5. Step 5: Solve for x
    x = 159,886,841.21/13,375.58
  6. Step 6: Final answer
    x = 11,953.64

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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.