Home / 10,890.02-16,336.65-3,869.45

Finding the Fourth Proportional to 10,890.02, 16,336.65 and 3,869.45

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Solution

The fourth proportional to 10,890.02, 16,336.65 and 3,869.45 is: 5,804.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.02 : 16,336.65 = 3,869.45 : x
  2. Step 2: Convert to fraction form
    10,890.02/16,336.65 = 3,869.45/x
  3. Step 3: Cross multiply
    10,890.02x = 16,336.65 × 3,869.45
  4. Step 4: Simplify right side
    10,890.02x = 63,213,850.34
  5. Step 5: Solve for x
    x = 63,213,850.34/10,890.02
  6. Step 6: Final answer
    x = 5,804.75

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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.