Home / 10,943.40-16,423.20-4,374.30

Finding the Fourth Proportional to 10,943.40, 16,423.20 and 4,374.30

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Solution

The fourth proportional to 10,943.40, 16,423.20 and 4,374.30 is: 6,564.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,943.40 : 16,423.20 = 4,374.30 : x
  2. Step 2: Convert to fraction form
    10,943.40/16,423.20 = 4,374.30/x
  3. Step 3: Cross multiply
    10,943.40x = 16,423.20 × 4,374.30
  4. Step 4: Simplify right side
    10,943.40x = 71,840,003.76
  5. Step 5: Solve for x
    x = 71,840,003.76/10,943.40
  6. Step 6: Final answer
    x = 6,564.69

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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.