Home / 8,724.35-12,039.36-4,745.63

Finding the Fourth Proportional to 8,724.35, 12,039.36 and 4,745.63

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Solution

The fourth proportional to 8,724.35, 12,039.36 and 4,745.63 is: 6,548.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.35 : 12,039.36 = 4,745.63 : x
  2. Step 2: Convert to fraction form
    8,724.35/12,039.36 = 4,745.63/x
  3. Step 3: Cross multiply
    8,724.35x = 12,039.36 × 4,745.63
  4. Step 4: Simplify right side
    8,724.35x = 57,134,348.00
  5. Step 5: Solve for x
    x = 57,134,348.00/8,724.35
  6. Step 6: Final answer
    x = 6,548.84

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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.