Home / 13,388.58-18,484.68-8,610.66

Finding the Fourth Proportional to 13,388.58, 18,484.68 and 8,610.66

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Solution

The fourth proportional to 13,388.58, 18,484.68 and 8,610.66 is: 11,888.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.58 : 18,484.68 = 8,610.66 : x
  2. Step 2: Convert to fraction form
    13,388.58/18,484.68 = 8,610.66/x
  3. Step 3: Cross multiply
    13,388.58x = 18,484.68 × 8,610.66
  4. Step 4: Simplify right side
    13,388.58x = 159,165,294.69
  5. Step 5: Solve for x
    x = 159,165,294.69/13,388.58
  6. Step 6: Final answer
    x = 11,888.14

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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.