Home / 8,960.72-13,435.44-3,117.80

Finding the Fourth Proportional to 8,960.72, 13,435.44 and 3,117.80

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Solution

The fourth proportional to 8,960.72, 13,435.44 and 3,117.80 is: 4,674.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.72 : 13,435.44 = 3,117.80 : x
  2. Step 2: Convert to fraction form
    8,960.72/13,435.44 = 3,117.80/x
  3. Step 3: Cross multiply
    8,960.72x = 13,435.44 × 3,117.80
  4. Step 4: Simplify right side
    8,960.72x = 41,889,014.83
  5. Step 5: Solve for x
    x = 41,889,014.83/8,960.72
  6. Step 6: Final answer
    x = 4,674.74

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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.