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Finding the Fourth Proportional to 10,368.50, 15,552.80 and 3,443

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Solution

The fourth proportional to 10,368.50, 15,552.80 and 3,443 is: 5,164.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.50 : 15,552.80 = 3,443 : x
  2. Step 2: Convert to fraction form
    10,368.50/15,552.80 = 3,443/x
  3. Step 3: Cross multiply
    10,368.50x = 15,552.80 × 3,443
  4. Step 4: Simplify right side
    10,368.50x = 53,548,290.40
  5. Step 5: Solve for x
    x = 53,548,290.40/10,368.50
  6. Step 6: Final answer
    x = 5,164.52

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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.