Home / 12,119.84-18,166.80-4,326.32

Finding the Fourth Proportional to 12,119.84, 18,166.80 and 4,326.32

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Solution

The fourth proportional to 12,119.84, 18,166.80 and 4,326.32 is: 6,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.84 : 18,166.80 = 4,326.32 : x
  2. Step 2: Convert to fraction form
    12,119.84/18,166.80 = 4,326.32/x
  3. Step 3: Cross multiply
    12,119.84x = 18,166.80 × 4,326.32
  4. Step 4: Simplify right side
    12,119.84x = 78,595,390.18
  5. Step 5: Solve for x
    x = 78,595,390.18/12,119.84
  6. Step 6: Final answer
    x = 6,484.85

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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.