Home / 12,179.04-18,269.64-4,390.08

Finding the Fourth Proportional to 12,179.04, 18,269.64 and 4,390.08

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Solution

The fourth proportional to 12,179.04, 18,269.64 and 4,390.08 is: 6,585.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.04 : 18,269.64 = 4,390.08 : x
  2. Step 2: Convert to fraction form
    12,179.04/18,269.64 = 4,390.08/x
  3. Step 3: Cross multiply
    12,179.04x = 18,269.64 × 4,390.08
  4. Step 4: Simplify right side
    12,179.04x = 80,205,181.17
  5. Step 5: Solve for x
    x = 80,205,181.17/12,179.04
  6. Step 6: Final answer
    x = 6,585.51

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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.