Home / 13,039.35-17,995.68-7,662.57

Finding the Fourth Proportional to 13,039.35, 17,995.68 and 7,662.57

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Solution

The fourth proportional to 13,039.35, 17,995.68 and 7,662.57 is: 10,575.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.35 : 17,995.68 = 7,662.57 : x
  2. Step 2: Convert to fraction form
    13,039.35/17,995.68 = 7,662.57/x
  3. Step 3: Cross multiply
    13,039.35x = 17,995.68 × 7,662.57
  4. Step 4: Simplify right side
    13,039.35x = 137,893,157.70
  5. Step 5: Solve for x
    x = 137,893,157.70/13,039.35
  6. Step 6: Final answer
    x = 10,575.16

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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.