Home / 8,369.46-12,560.48-3,109.32

Finding the Fourth Proportional to 8,369.46, 12,560.48 and 3,109.32

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Solution

The fourth proportional to 8,369.46, 12,560.48 and 3,109.32 is: 4,666.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.46 : 12,560.48 = 3,109.32 : x
  2. Step 2: Convert to fraction form
    8,369.46/12,560.48 = 3,109.32/x
  3. Step 3: Cross multiply
    8,369.46x = 12,560.48 × 3,109.32
  4. Step 4: Simplify right side
    8,369.46x = 39,054,551.67
  5. Step 5: Solve for x
    x = 39,054,551.67/8,369.46
  6. Step 6: Final answer
    x = 4,666.32

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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.