Home / 13,412.84-18,508.82-8,110.58

Finding the Fourth Proportional to 13,412.84, 18,508.82 and 8,110.58

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Solution

The fourth proportional to 13,412.84, 18,508.82 and 8,110.58 is: 11,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.84 : 18,508.82 = 8,110.58 : x
  2. Step 2: Convert to fraction form
    13,412.84/18,508.82 = 8,110.58/x
  3. Step 3: Cross multiply
    13,412.84x = 18,508.82 × 8,110.58
  4. Step 4: Simplify right side
    13,412.84x = 150,117,132.22
  5. Step 5: Solve for x
    x = 150,117,132.22/13,412.84
  6. Step 6: Final answer
    x = 11,192.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.