Home / 18,222.16-25,139.28-11,136.28

Finding the Fourth Proportional to 18,222.16, 25,139.28 and 11,136.28

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Solution

The fourth proportional to 18,222.16, 25,139.28 and 11,136.28 is: 15,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,222.16 : 25,139.28 = 11,136.28 : x
  2. Step 2: Convert to fraction form
    18,222.16/25,139.28 = 11,136.28/x
  3. Step 3: Cross multiply
    18,222.16x = 25,139.28 × 11,136.28
  4. Step 4: Simplify right side
    18,222.16x = 279,958,061.08
  5. Step 5: Solve for x
    x = 279,958,061.08/18,222.16
  6. Step 6: Final answer
    x = 15,363.60

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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.