Home / 11,890.64-17,835.36-5,646.08

Finding the Fourth Proportional to 11,890.64, 17,835.36 and 5,646.08

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Solution

The fourth proportional to 11,890.64, 17,835.36 and 5,646.08 is: 8,468.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.64 : 17,835.36 = 5,646.08 : x
  2. Step 2: Convert to fraction form
    11,890.64/17,835.36 = 5,646.08/x
  3. Step 3: Cross multiply
    11,890.64x = 17,835.36 × 5,646.08
  4. Step 4: Simplify right side
    11,890.64x = 100,699,869.39
  5. Step 5: Solve for x
    x = 100,699,869.39/11,890.64
  6. Step 6: Final answer
    x = 8,468.84

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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.