Home / 13,276.98-18,322.83-8,242.83

Finding the Fourth Proportional to 13,276.98, 18,322.83 and 8,242.83

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Solution

The fourth proportional to 13,276.98, 18,322.83 and 8,242.83 is: 11,375.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.98 : 18,322.83 = 8,242.83 : x
  2. Step 2: Convert to fraction form
    13,276.98/18,322.83 = 8,242.83/x
  3. Step 3: Cross multiply
    13,276.98x = 18,322.83 × 8,242.83
  4. Step 4: Simplify right side
    13,276.98x = 151,031,972.81
  5. Step 5: Solve for x
    x = 151,031,972.81/13,276.98
  6. Step 6: Final answer
    x = 11,375.48

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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.