Home / 10,779.30-16,176.45-4,205.52

Finding the Fourth Proportional to 10,779.30, 16,176.45 and 4,205.52

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Solution

The fourth proportional to 10,779.30, 16,176.45 and 4,205.52 is: 6,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.30 : 16,176.45 = 4,205.52 : x
  2. Step 2: Convert to fraction form
    10,779.30/16,176.45 = 4,205.52/x
  3. Step 3: Cross multiply
    10,779.30x = 16,176.45 × 4,205.52
  4. Step 4: Simplify right side
    10,779.30x = 68,030,384.00
  5. Step 5: Solve for x
    x = 68,030,384.00/10,779.30
  6. Step 6: Final answer
    x = 6,311.21

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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.