Home / 9,779.20-14,669.70-3,934.60

Finding the Fourth Proportional to 9,779.20, 14,669.70 and 3,934.60

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Solution

The fourth proportional to 9,779.20, 14,669.70 and 3,934.60 is: 5,902.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,779.20 : 14,669.70 = 3,934.60 : x
  2. Step 2: Convert to fraction form
    9,779.20/14,669.70 = 3,934.60/x
  3. Step 3: Cross multiply
    9,779.20x = 14,669.70 × 3,934.60
  4. Step 4: Simplify right side
    9,779.20x = 57,719,401.62
  5. Step 5: Solve for x
    x = 57,719,401.62/9,779.20
  6. Step 6: Final answer
    x = 5,902.26

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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.