Home / 12,178.69-18,260.97-4,774.48

Finding the Fourth Proportional to 12,178.69, 18,260.97 and 4,774.48

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Solution

The fourth proportional to 12,178.69, 18,260.97 and 4,774.48 is: 7,158.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.69 : 18,260.97 = 4,774.48 : x
  2. Step 2: Convert to fraction form
    12,178.69/18,260.97 = 4,774.48/x
  3. Step 3: Cross multiply
    12,178.69x = 18,260.97 × 4,774.48
  4. Step 4: Simplify right side
    12,178.69x = 87,186,636.05
  5. Step 5: Solve for x
    x = 87,186,636.05/12,178.69
  6. Step 6: Final answer
    x = 7,158.95

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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.