Home / 10,913.13-16,375.59-4,339.40

Finding the Fourth Proportional to 10,913.13, 16,375.59 and 4,339.40

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Solution

The fourth proportional to 10,913.13, 16,375.59 and 4,339.40 is: 6,511.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.13 : 16,375.59 = 4,339.40 : x
  2. Step 2: Convert to fraction form
    10,913.13/16,375.59 = 4,339.40/x
  3. Step 3: Cross multiply
    10,913.13x = 16,375.59 × 4,339.40
  4. Step 4: Simplify right side
    10,913.13x = 71,060,153.37
  5. Step 5: Solve for x
    x = 71,060,153.37/10,913.13
  6. Step 6: Final answer
    x = 6,511.44

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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.