Home / 13,613.04-20,375.80-7,030.24

Finding the Fourth Proportional to 13,613.04, 20,375.80 and 7,030.24

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Solution

The fourth proportional to 13,613.04, 20,375.80 and 7,030.24 is: 10,522.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.04 : 20,375.80 = 7,030.24 : x
  2. Step 2: Convert to fraction form
    13,613.04/20,375.80 = 7,030.24/x
  3. Step 3: Cross multiply
    13,613.04x = 20,375.80 × 7,030.24
  4. Step 4: Simplify right side
    13,613.04x = 143,246,764.19
  5. Step 5: Solve for x
    x = 143,246,764.19/13,613.04
  6. Step 6: Final answer
    x = 10,522.76

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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.