Home / 13,035.18-17,981.94-8,247.09

Finding the Fourth Proportional to 13,035.18, 17,981.94 and 8,247.09

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Solution

The fourth proportional to 13,035.18, 17,981.94 and 8,247.09 is: 11,376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,035.18 : 17,981.94 = 8,247.09 : x
  2. Step 2: Convert to fraction form
    13,035.18/17,981.94 = 8,247.09/x
  3. Step 3: Cross multiply
    13,035.18x = 17,981.94 × 8,247.09
  4. Step 4: Simplify right side
    13,035.18x = 148,298,587.64
  5. Step 5: Solve for x
    x = 148,298,587.64/13,035.18
  6. Step 6: Final answer
    x = 11,376.80

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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.