Home / 13,136.46-18,122.05-8,889.01

Finding the Fourth Proportional to 13,136.46, 18,122.05 and 8,889.01

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Solution

The fourth proportional to 13,136.46, 18,122.05 and 8,889.01 is: 12,262.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.46 : 18,122.05 = 8,889.01 : x
  2. Step 2: Convert to fraction form
    13,136.46/18,122.05 = 8,889.01/x
  3. Step 3: Cross multiply
    13,136.46x = 18,122.05 × 8,889.01
  4. Step 4: Simplify right side
    13,136.46x = 161,087,083.67
  5. Step 5: Solve for x
    x = 161,087,083.67/13,136.46
  6. Step 6: Final answer
    x = 12,262.59

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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.