Home / 8,328.61-12,487.35-3,396.92

Finding the Fourth Proportional to 8,328.61, 12,487.35 and 3,396.92

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Solution

The fourth proportional to 8,328.61, 12,487.35 and 3,396.92 is: 5,093.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.61 : 12,487.35 = 3,396.92 : x
  2. Step 2: Convert to fraction form
    8,328.61/12,487.35 = 3,396.92/x
  3. Step 3: Cross multiply
    8,328.61x = 12,487.35 × 3,396.92
  4. Step 4: Simplify right side
    8,328.61x = 42,418,528.96
  5. Step 5: Solve for x
    x = 42,418,528.96/8,328.61
  6. Step 6: Final answer
    x = 5,093.11

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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.