Home / 11,110.60-16,687.08-6,440

Finding the Fourth Proportional to 11,110.60, 16,687.08 and 6,440

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Solution

The fourth proportional to 11,110.60, 16,687.08 and 6,440 is: 9,672.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,110.60 : 16,687.08 = 6,440 : x
  2. Step 2: Convert to fraction form
    11,110.60/16,687.08 = 6,440/x
  3. Step 3: Cross multiply
    11,110.60x = 16,687.08 × 6,440
  4. Step 4: Simplify right side
    11,110.60x = 107,464,795.20
  5. Step 5: Solve for x
    x = 107,464,795.20/11,110.60
  6. Step 6: Final answer
    x = 9,672.28

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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.