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Finding the Fourth Proportional to 8,417.78, 12,627.06 and 3,223.28

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Solution

The fourth proportional to 8,417.78, 12,627.06 and 3,223.28 is: 4,835.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.78 : 12,627.06 = 3,223.28 : x
  2. Step 2: Convert to fraction form
    8,417.78/12,627.06 = 3,223.28/x
  3. Step 3: Cross multiply
    8,417.78x = 12,627.06 × 3,223.28
  4. Step 4: Simplify right side
    8,417.78x = 40,700,549.96
  5. Step 5: Solve for x
    x = 40,700,549.96/8,417.78
  6. Step 6: Final answer
    x = 4,835.07

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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.