Home / 13,396.54-20,088.60-7,154.86

Finding the Fourth Proportional to 13,396.54, 20,088.60 and 7,154.86

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Solution

The fourth proportional to 13,396.54, 20,088.60 and 7,154.86 is: 10,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,396.54 : 20,088.60 = 7,154.86 : x
  2. Step 2: Convert to fraction form
    13,396.54/20,088.60 = 7,154.86/x
  3. Step 3: Cross multiply
    13,396.54x = 20,088.60 × 7,154.86
  4. Step 4: Simplify right side
    13,396.54x = 143,731,120.60
  5. Step 5: Solve for x
    x = 143,731,120.60/13,396.54
  6. Step 6: Final answer
    x = 10,728.97

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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.