Home / 10,899.20-16,349.80-4,329.92

Finding the Fourth Proportional to 10,899.20, 16,349.80 and 4,329.92

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Solution

The fourth proportional to 10,899.20, 16,349.80 and 4,329.92 is: 6,495.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.20 : 16,349.80 = 4,329.92 : x
  2. Step 2: Convert to fraction form
    10,899.20/16,349.80 = 4,329.92/x
  3. Step 3: Cross multiply
    10,899.20x = 16,349.80 × 4,329.92
  4. Step 4: Simplify right side
    10,899.20x = 70,793,326.02
  5. Step 5: Solve for x
    x = 70,793,326.02/10,899.20
  6. Step 6: Final answer
    x = 6,495.28

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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.