Home / 7,788.15-11,688.44-4,092.55

Finding the Fourth Proportional to 7,788.15, 11,688.44 and 4,092.55

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Solution

The fourth proportional to 7,788.15, 11,688.44 and 4,092.55 is: 6,142.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.15 : 11,688.44 = 4,092.55 : x
  2. Step 2: Convert to fraction form
    7,788.15/11,688.44 = 4,092.55/x
  3. Step 3: Cross multiply
    7,788.15x = 11,688.44 × 4,092.55
  4. Step 4: Simplify right side
    7,788.15x = 47,835,475.44
  5. Step 5: Solve for x
    x = 47,835,475.44/7,788.15
  6. Step 6: Final answer
    x = 6,142.08

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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.