Home / 12,135.60-18,196.92-4,340.16

Finding the Fourth Proportional to 12,135.60, 18,196.92 and 4,340.16

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Solution

The fourth proportional to 12,135.60, 18,196.92 and 4,340.16 is: 6,507.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.60 : 18,196.92 = 4,340.16 : x
  2. Step 2: Convert to fraction form
    12,135.60/18,196.92 = 4,340.16/x
  3. Step 3: Cross multiply
    12,135.60x = 18,196.92 × 4,340.16
  4. Step 4: Simplify right side
    12,135.60x = 78,977,544.31
  5. Step 5: Solve for x
    x = 78,977,544.31/12,135.60
  6. Step 6: Final answer
    x = 6,507.92

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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.