Home / 8,223.53-12,320.91-6,845.72

Finding the Fourth Proportional to 8,223.53, 12,320.91 and 6,845.72

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Solution

The fourth proportional to 8,223.53, 12,320.91 and 6,845.72 is: 10,256.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,223.53 : 12,320.91 = 6,845.72 : x
  2. Step 2: Convert to fraction form
    8,223.53/12,320.91 = 6,845.72/x
  3. Step 3: Cross multiply
    8,223.53x = 12,320.91 × 6,845.72
  4. Step 4: Simplify right side
    8,223.53x = 84,345,438.40
  5. Step 5: Solve for x
    x = 84,345,438.40/8,223.53
  6. Step 6: Final answer
    x = 10,256.60

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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.