Home / 7,779.94-11,669.83-3,617.62

Finding the Fourth Proportional to 7,779.94, 11,669.83 and 3,617.62

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Solution

The fourth proportional to 7,779.94, 11,669.83 and 3,617.62 is: 5,426.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.94 : 11,669.83 = 3,617.62 : x
  2. Step 2: Convert to fraction form
    7,779.94/11,669.83 = 3,617.62/x
  3. Step 3: Cross multiply
    7,779.94x = 11,669.83 × 3,617.62
  4. Step 4: Simplify right side
    7,779.94x = 42,216,972.19
  5. Step 5: Solve for x
    x = 42,216,972.19/7,779.94
  6. Step 6: Final answer
    x = 5,426.39

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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.