Home / 16,931.60-25,399.84-5,245.84

Finding the Fourth Proportional to 16,931.60, 25,399.84 and 5,245.84

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Solution

The fourth proportional to 16,931.60, 25,399.84 and 5,245.84 is: 7,869.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,931.60 : 25,399.84 = 5,245.84 : x
  2. Step 2: Convert to fraction form
    16,931.60/25,399.84 = 5,245.84/x
  3. Step 3: Cross multiply
    16,931.60x = 25,399.84 × 5,245.84
  4. Step 4: Simplify right side
    16,931.60x = 133,243,496.67
  5. Step 5: Solve for x
    x = 133,243,496.67/16,931.60
  6. Step 6: Final answer
    x = 7,869.52

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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.