Home / 8,352.24-12,528.35-3,420.98

Finding the Fourth Proportional to 8,352.24, 12,528.35 and 3,420.98

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Solution

The fourth proportional to 8,352.24, 12,528.35 and 3,420.98 is: 5,131.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352.24 : 12,528.35 = 3,420.98 : x
  2. Step 2: Convert to fraction form
    8,352.24/12,528.35 = 3,420.98/x
  3. Step 3: Cross multiply
    8,352.24x = 12,528.35 × 3,420.98
  4. Step 4: Simplify right side
    8,352.24x = 42,859,234.78
  5. Step 5: Solve for x
    x = 42,859,234.78/8,352.24
  6. Step 6: Final answer
    x = 5,131.47

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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.