Home / 13,455.86-20,175.89-5,552.28

Finding the Fourth Proportional to 13,455.86, 20,175.89 and 5,552.28

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Solution

The fourth proportional to 13,455.86, 20,175.89 and 5,552.28 is: 8,325.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.86 : 20,175.89 = 5,552.28 : x
  2. Step 2: Convert to fraction form
    13,455.86/20,175.89 = 5,552.28/x
  3. Step 3: Cross multiply
    13,455.86x = 20,175.89 × 5,552.28
  4. Step 4: Simplify right side
    13,455.86x = 112,022,162.77
  5. Step 5: Solve for x
    x = 112,022,162.77/13,455.86
  6. Step 6: Final answer
    x = 8,325.16

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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.