Home / 8,960.92-13,418.70-6,621.64

Finding the Fourth Proportional to 8,960.92, 13,418.70 and 6,621.64

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Solution

The fourth proportional to 8,960.92, 13,418.70 and 6,621.64 is: 9,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.92 : 13,418.70 = 6,621.64 : x
  2. Step 2: Convert to fraction form
    8,960.92/13,418.70 = 6,621.64/x
  3. Step 3: Cross multiply
    8,960.92x = 13,418.70 × 6,621.64
  4. Step 4: Simplify right side
    8,960.92x = 88,853,800.67
  5. Step 5: Solve for x
    x = 88,853,800.67/8,960.92
  6. Step 6: Final answer
    x = 9,915.70

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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.