Home / 8,353.29-12,529.91-3,422.94

Finding the Fourth Proportional to 8,353.29, 12,529.91 and 3,422.94

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Solution

The fourth proportional to 8,353.29, 12,529.91 and 3,422.94 is: 5,134.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.29 : 12,529.91 = 3,422.94 : x
  2. Step 2: Convert to fraction form
    8,353.29/12,529.91 = 3,422.94/x
  3. Step 3: Cross multiply
    8,353.29x = 12,529.91 × 3,422.94
  4. Step 4: Simplify right side
    8,353.29x = 42,889,113.02
  5. Step 5: Solve for x
    x = 42,889,113.02/8,353.29
  6. Step 6: Final answer
    x = 5,134.40

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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.