Home / 13,477.32-20,202.12-5,155.38

Finding the Fourth Proportional to 13,477.32, 20,202.12 and 5,155.38

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Solution

The fourth proportional to 13,477.32, 20,202.12 and 5,155.38 is: 7,727.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.32 : 20,202.12 = 5,155.38 : x
  2. Step 2: Convert to fraction form
    13,477.32/20,202.12 = 5,155.38/x
  3. Step 3: Cross multiply
    13,477.32x = 20,202.12 × 5,155.38
  4. Step 4: Simplify right side
    13,477.32x = 104,149,605.41
  5. Step 5: Solve for x
    x = 104,149,605.41/13,477.32
  6. Step 6: Final answer
    x = 7,727.77

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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.