Home / 16,885.68-25,317.54-5,639.64

Finding the Fourth Proportional to 16,885.68, 25,317.54 and 5,639.64

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Solution

The fourth proportional to 16,885.68, 25,317.54 and 5,639.64 is: 8,455.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,885.68 : 25,317.54 = 5,639.64 : x
  2. Step 2: Convert to fraction form
    16,885.68/25,317.54 = 5,639.64/x
  3. Step 3: Cross multiply
    16,885.68x = 25,317.54 × 5,639.64
  4. Step 4: Simplify right side
    16,885.68x = 142,781,811.29
  5. Step 5: Solve for x
    x = 142,781,811.29/16,885.68
  6. Step 6: Final answer
    x = 8,455.79

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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.