Home / 10,890.65-16,352.38-6,215.94

Finding the Fourth Proportional to 10,890.65, 16,352.38 and 6,215.94

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Solution

The fourth proportional to 10,890.65, 16,352.38 and 6,215.94 is: 9,333.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.65 : 16,352.38 = 6,215.94 : x
  2. Step 2: Convert to fraction form
    10,890.65/16,352.38 = 6,215.94/x
  3. Step 3: Cross multiply
    10,890.65x = 16,352.38 × 6,215.94
  4. Step 4: Simplify right side
    10,890.65x = 101,645,420.71
  5. Step 5: Solve for x
    x = 101,645,420.71/10,890.65
  6. Step 6: Final answer
    x = 9,333.27

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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.