Home / 12,904.65-17,811.09-7,600.77

Finding the Fourth Proportional to 12,904.65, 17,811.09 and 7,600.77

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Solution

The fourth proportional to 12,904.65, 17,811.09 and 7,600.77 is: 10,490.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.65 : 17,811.09 = 7,600.77 : x
  2. Step 2: Convert to fraction form
    12,904.65/17,811.09 = 7,600.77/x
  3. Step 3: Cross multiply
    12,904.65x = 17,811.09 × 7,600.77
  4. Step 4: Simplify right side
    12,904.65x = 135,377,998.54
  5. Step 5: Solve for x
    x = 135,377,998.54/12,904.65
  6. Step 6: Final answer
    x = 10,490.64

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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.