Home / 8,353.24-12,529.86-3,421.98

Finding the Fourth Proportional to 8,353.24, 12,529.86 and 3,421.98

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Solution

The fourth proportional to 8,353.24, 12,529.86 and 3,421.98 is: 5,132.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.24 : 12,529.86 = 3,421.98 : x
  2. Step 2: Convert to fraction form
    8,353.24/12,529.86 = 3,421.98/x
  3. Step 3: Cross multiply
    8,353.24x = 12,529.86 × 3,421.98
  4. Step 4: Simplify right side
    8,353.24x = 42,876,930.32
  5. Step 5: Solve for x
    x = 42,876,930.32/8,353.24
  6. Step 6: Final answer
    x = 5,132.97

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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.