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Finding the Fourth Proportional to 8,353.64, 12,519.51 and 3,417.50

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Solution

The fourth proportional to 8,353.64, 12,519.51 and 3,417.50 is: 5,121.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.64 : 12,519.51 = 3,417.50 : x
  2. Step 2: Convert to fraction form
    8,353.64/12,519.51 = 3,417.50/x
  3. Step 3: Cross multiply
    8,353.64x = 12,519.51 × 3,417.50
  4. Step 4: Simplify right side
    8,353.64x = 42,785,425.43
  5. Step 5: Solve for x
    x = 42,785,425.43/8,353.64
  6. Step 6: Final answer
    x = 5,121.77

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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.