Home / 12,513.48-18,770.21-5,758.39

Finding the Fourth Proportional to 12,513.48, 18,770.21 and 5,758.39

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Solution

The fourth proportional to 12,513.48, 18,770.21 and 5,758.39 is: 8,637.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.48 : 18,770.21 = 5,758.39 : x
  2. Step 2: Convert to fraction form
    12,513.48/18,770.21 = 5,758.39/x
  3. Step 3: Cross multiply
    12,513.48x = 18,770.21 × 5,758.39
  4. Step 4: Simplify right side
    12,513.48x = 108,086,066.92
  5. Step 5: Solve for x
    x = 108,086,066.92/12,513.48
  6. Step 6: Final answer
    x = 8,637.57

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Similar ratio
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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.