Home / 12,620.13-17,399.60-10,343.09

Finding the Fourth Proportional to 12,620.13, 17,399.60 and 10,343.09

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Solution

The fourth proportional to 12,620.13, 17,399.60 and 10,343.09 is: 14,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620.13 : 17,399.60 = 10,343.09 : x
  2. Step 2: Convert to fraction form
    12,620.13/17,399.60 = 10,343.09/x
  3. Step 3: Cross multiply
    12,620.13x = 17,399.60 × 10,343.09
  4. Step 4: Simplify right side
    12,620.13x = 179,965,541.77
  5. Step 5: Solve for x
    x = 179,965,541.77/12,620.13
  6. Step 6: Final answer
    x = 14,260.20

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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.