Home / 13,236.68-18,264.11-8,991.14

Finding the Fourth Proportional to 13,236.68, 18,264.11 and 8,991.14

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Solution

The fourth proportional to 13,236.68, 18,264.11 and 8,991.14 is: 12,406.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.68 : 18,264.11 = 8,991.14 : x
  2. Step 2: Convert to fraction form
    13,236.68/18,264.11 = 8,991.14/x
  3. Step 3: Cross multiply
    13,236.68x = 18,264.11 × 8,991.14
  4. Step 4: Simplify right side
    13,236.68x = 164,215,033.71
  5. Step 5: Solve for x
    x = 164,215,033.71/13,236.68
  6. Step 6: Final answer
    x = 12,406.06

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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.