Home / 13,617.33-20,390.36-8,922.57

Finding the Fourth Proportional to 13,617.33, 20,390.36 and 8,922.57

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Solution

The fourth proportional to 13,617.33, 20,390.36 and 8,922.57 is: 13,360.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.33 : 20,390.36 = 8,922.57 : x
  2. Step 2: Convert to fraction form
    13,617.33/20,390.36 = 8,922.57/x
  3. Step 3: Cross multiply
    13,617.33x = 20,390.36 × 8,922.57
  4. Step 4: Simplify right side
    13,617.33x = 181,934,369.81
  5. Step 5: Solve for x
    x = 181,934,369.81/13,617.33
  6. Step 6: Final answer
    x = 13,360.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.