Home / 12,588.06-17,367.20-7,806.28

Finding the Fourth Proportional to 12,588.06, 17,367.20 and 7,806.28

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Solution

The fourth proportional to 12,588.06, 17,367.20 and 7,806.28 is: 10,769.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.06 : 17,367.20 = 7,806.28 : x
  2. Step 2: Convert to fraction form
    12,588.06/17,367.20 = 7,806.28/x
  3. Step 3: Cross multiply
    12,588.06x = 17,367.20 × 7,806.28
  4. Step 4: Simplify right side
    12,588.06x = 135,573,226.02
  5. Step 5: Solve for x
    x = 135,573,226.02/12,588.06
  6. Step 6: Final answer
    x = 10,769.99

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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.