Home / 12,231.55-16,873.74-8,253.95

Finding the Fourth Proportional to 12,231.55, 16,873.74 and 8,253.95

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Solution

The fourth proportional to 12,231.55, 16,873.74 and 8,253.95 is: 11,386.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.55 : 16,873.74 = 8,253.95 : x
  2. Step 2: Convert to fraction form
    12,231.55/16,873.74 = 8,253.95/x
  3. Step 3: Cross multiply
    12,231.55x = 16,873.74 × 8,253.95
  4. Step 4: Simplify right side
    12,231.55x = 139,274,921.90
  5. Step 5: Solve for x
    x = 139,274,921.90/12,231.55
  6. Step 6: Final answer
    x = 11,386.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.