Home / 12,309.48-18,460.17-4,911.66

Finding the Fourth Proportional to 12,309.48, 18,460.17 and 4,911.66

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Solution

The fourth proportional to 12,309.48, 18,460.17 and 4,911.66 is: 7,365.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309.48 : 18,460.17 = 4,911.66 : x
  2. Step 2: Convert to fraction form
    12,309.48/18,460.17 = 4,911.66/x
  3. Step 3: Cross multiply
    12,309.48x = 18,460.17 × 4,911.66
  4. Step 4: Simplify right side
    12,309.48x = 90,670,078.58
  5. Step 5: Solve for x
    x = 90,670,078.58/12,309.48
  6. Step 6: Final answer
    x = 7,365.87

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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.