Home / 15,530.64-23,277.72-8,138.58

Finding the Fourth Proportional to 15,530.64, 23,277.72 and 8,138.58

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Solution

The fourth proportional to 15,530.64, 23,277.72 and 8,138.58 is: 12,198.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,530.64 : 23,277.72 = 8,138.58 : x
  2. Step 2: Convert to fraction form
    15,530.64/23,277.72 = 8,138.58/x
  3. Step 3: Cross multiply
    15,530.64x = 23,277.72 × 8,138.58
  4. Step 4: Simplify right side
    15,530.64x = 189,447,529.67
  5. Step 5: Solve for x
    x = 189,447,529.67/15,530.64
  6. Step 6: Final answer
    x = 12,198.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.