Home / 10,835.60-16,231.80-5,644.40

Finding the Fourth Proportional to 10,835.60, 16,231.80 and 5,644.40

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Solution

The fourth proportional to 10,835.60, 16,231.80 and 5,644.40 is: 8,455.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,835.60 : 16,231.80 = 5,644.40 : x
  2. Step 2: Convert to fraction form
    10,835.60/16,231.80 = 5,644.40/x
  3. Step 3: Cross multiply
    10,835.60x = 16,231.80 × 5,644.40
  4. Step 4: Simplify right side
    10,835.60x = 91,618,771.92
  5. Step 5: Solve for x
    x = 91,618,771.92/10,835.60
  6. Step 6: Final answer
    x = 8,455.35

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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.