Home / 8,724.15-12,039.53-4,745.48

Finding the Fourth Proportional to 8,724.15, 12,039.53 and 4,745.48

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Solution

The fourth proportional to 8,724.15, 12,039.53 and 4,745.48 is: 6,548.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.15 : 12,039.53 = 4,745.48 : x
  2. Step 2: Convert to fraction form
    8,724.15/12,039.53 = 4,745.48/x
  3. Step 3: Cross multiply
    8,724.15x = 12,039.53 × 4,745.48
  4. Step 4: Simplify right side
    8,724.15x = 57,133,264.90
  5. Step 5: Solve for x
    x = 57,133,264.90/8,724.15
  6. Step 6: Final answer
    x = 6,548.86

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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.