Home / 7,175.12-10,763.79-3,663.22

Finding the Fourth Proportional to 7,175.12, 10,763.79 and 3,663.22

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Solution

The fourth proportional to 7,175.12, 10,763.79 and 3,663.22 is: 5,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175.12 : 10,763.79 = 3,663.22 : x
  2. Step 2: Convert to fraction form
    7,175.12/10,763.79 = 3,663.22/x
  3. Step 3: Cross multiply
    7,175.12x = 10,763.79 × 3,663.22
  4. Step 4: Simplify right side
    7,175.12x = 39,430,130.80
  5. Step 5: Solve for x
    x = 39,430,130.80/7,175.12
  6. Step 6: Final answer
    x = 5,495.40

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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.