Home / 10,779.36-16,165.80-4,203.78

Finding the Fourth Proportional to 10,779.36, 16,165.80 and 4,203.78

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Solution

The fourth proportional to 10,779.36, 16,165.80 and 4,203.78 is: 6,304.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.36 : 16,165.80 = 4,203.78 : x
  2. Step 2: Convert to fraction form
    10,779.36/16,165.80 = 4,203.78/x
  3. Step 3: Cross multiply
    10,779.36x = 16,165.80 × 4,203.78
  4. Step 4: Simplify right side
    10,779.36x = 67,957,466.72
  5. Step 5: Solve for x
    x = 67,957,466.72/10,779.36
  6. Step 6: Final answer
    x = 6,304.41

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1.5x scale

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.