Home / 13,513.50-20,261.22-5,613.96

Finding the Fourth Proportional to 13,513.50, 20,261.22 and 5,613.96

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Solution

The fourth proportional to 13,513.50, 20,261.22 and 5,613.96 is: 8,417.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.50 : 20,261.22 = 5,613.96 : x
  2. Step 2: Convert to fraction form
    13,513.50/20,261.22 = 5,613.96/x
  3. Step 3: Cross multiply
    13,513.50x = 20,261.22 × 5,613.96
  4. Step 4: Simplify right side
    13,513.50x = 113,745,678.63
  5. Step 5: Solve for x
    x = 113,745,678.63/13,513.50
  6. Step 6: Final answer
    x = 8,417.19

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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.