Home / 7,788.02-11,685.45-4,089.37

Finding the Fourth Proportional to 7,788.02, 11,685.45 and 4,089.37

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Solution

The fourth proportional to 7,788.02, 11,685.45 and 4,089.37 is: 6,135.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.02 : 11,685.45 = 4,089.37 : x
  2. Step 2: Convert to fraction form
    7,788.02/11,685.45 = 4,089.37/x
  3. Step 3: Cross multiply
    7,788.02x = 11,685.45 × 4,089.37
  4. Step 4: Simplify right side
    7,788.02x = 47,786,128.67
  5. Step 5: Solve for x
    x = 47,786,128.67/7,788.02
  6. Step 6: Final answer
    x = 6,135.85

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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.