Home / 17,622.65-26,431.39-5,139.32

Finding the Fourth Proportional to 17,622.65, 26,431.39 and 5,139.32

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Solution

The fourth proportional to 17,622.65, 26,431.39 and 5,139.32 is: 7,708.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,622.65 : 26,431.39 = 5,139.32 : x
  2. Step 2: Convert to fraction form
    17,622.65/26,431.39 = 5,139.32/x
  3. Step 3: Cross multiply
    17,622.65x = 26,431.39 × 5,139.32
  4. Step 4: Simplify right side
    17,622.65x = 135,839,371.25
  5. Step 5: Solve for x
    x = 135,839,371.25/17,622.65
  6. Step 6: Final answer
    x = 7,708.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.