Home / 11,445.40-17,169.18-4,871.44

Finding the Fourth Proportional to 11,445.40, 17,169.18 and 4,871.44

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Solution

The fourth proportional to 11,445.40, 17,169.18 and 4,871.44 is: 7,307.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.40 : 17,169.18 = 4,871.44 : x
  2. Step 2: Convert to fraction form
    11,445.40/17,169.18 = 4,871.44/x
  3. Step 3: Cross multiply
    11,445.40x = 17,169.18 × 4,871.44
  4. Step 4: Simplify right side
    11,445.40x = 83,638,630.22
  5. Step 5: Solve for x
    x = 83,638,630.22/11,445.40
  6. Step 6: Final answer
    x = 7,307.62

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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.