Home / 13,110.48-18,098.69-8,397.54

Finding the Fourth Proportional to 13,110.48, 18,098.69 and 8,397.54

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Solution

The fourth proportional to 13,110.48, 18,098.69 and 8,397.54 is: 11,592.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.48 : 18,098.69 = 8,397.54 : x
  2. Step 2: Convert to fraction form
    13,110.48/18,098.69 = 8,397.54/x
  3. Step 3: Cross multiply
    13,110.48x = 18,098.69 × 8,397.54
  4. Step 4: Simplify right side
    13,110.48x = 151,984,431.23
  5. Step 5: Solve for x
    x = 151,984,431.23/13,110.48
  6. Step 6: Final answer
    x = 11,592.59

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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.