Home / 12,478.24-17,222.79-8,500.94

Finding the Fourth Proportional to 12,478.24, 17,222.79 and 8,500.94

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Solution

The fourth proportional to 12,478.24, 17,222.79 and 8,500.94 is: 11,733.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478.24 : 17,222.79 = 8,500.94 : x
  2. Step 2: Convert to fraction form
    12,478.24/17,222.79 = 8,500.94/x
  3. Step 3: Cross multiply
    12,478.24x = 17,222.79 × 8,500.94
  4. Step 4: Simplify right side
    12,478.24x = 146,409,904.42
  5. Step 5: Solve for x
    x = 146,409,904.42/12,478.24
  6. Step 6: Final answer
    x = 11,733.22

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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.