Home / 13,302.08-18,353.76-7,997.12

Finding the Fourth Proportional to 13,302.08, 18,353.76 and 7,997.12

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Solution

The fourth proportional to 13,302.08, 18,353.76 and 7,997.12 is: 11,034.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302.08 : 18,353.76 = 7,997.12 : x
  2. Step 2: Convert to fraction form
    13,302.08/18,353.76 = 7,997.12/x
  3. Step 3: Cross multiply
    13,302.08x = 18,353.76 × 7,997.12
  4. Step 4: Simplify right side
    13,302.08x = 146,777,221.17
  5. Step 5: Solve for x
    x = 146,777,221.17/13,302.08
  6. Step 6: Final answer
    x = 11,034.16

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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.