Home / 7,745.61-10,687.77-4,387.89

Finding the Fourth Proportional to 7,745.61, 10,687.77 and 4,387.89

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Solution

The fourth proportional to 7,745.61, 10,687.77 and 4,387.89 is: 6,054.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.61 : 10,687.77 = 4,387.89 : x
  2. Step 2: Convert to fraction form
    7,745.61/10,687.77 = 4,387.89/x
  3. Step 3: Cross multiply
    7,745.61x = 10,687.77 × 4,387.89
  4. Step 4: Simplify right side
    7,745.61x = 46,896,759.11
  5. Step 5: Solve for x
    x = 46,896,759.11/7,745.61
  6. Step 6: Final answer
    x = 6,054.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.