Home / 13,282.58-18,319.50-8,243.96

Finding the Fourth Proportional to 13,282.58, 18,319.50 and 8,243.96

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Solution

The fourth proportional to 13,282.58, 18,319.50 and 8,243.96 is: 11,370.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.58 : 18,319.50 = 8,243.96 : x
  2. Step 2: Convert to fraction form
    13,282.58/18,319.50 = 8,243.96/x
  3. Step 3: Cross multiply
    13,282.58x = 18,319.50 × 8,243.96
  4. Step 4: Simplify right side
    13,282.58x = 151,025,225.22
  5. Step 5: Solve for x
    x = 151,025,225.22/13,282.58
  6. Step 6: Final answer
    x = 11,370.17

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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.