Home / 13,742.38-20,613.66-4,977.10

Finding the Fourth Proportional to 13,742.38, 20,613.66 and 4,977.10

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Solution

The fourth proportional to 13,742.38, 20,613.66 and 4,977.10 is: 7,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742.38 : 20,613.66 = 4,977.10 : x
  2. Step 2: Convert to fraction form
    13,742.38/20,613.66 = 4,977.10/x
  3. Step 3: Cross multiply
    13,742.38x = 20,613.66 × 4,977.10
  4. Step 4: Simplify right side
    13,742.38x = 102,596,247.19
  5. Step 5: Solve for x
    x = 102,596,247.19/13,742.38
  6. Step 6: Final answer
    x = 7,465.68

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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.