Home / 8,211.50-12,315.42-2,368.56

Finding the Fourth Proportional to 8,211.50, 12,315.42 and 2,368.56

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Solution

The fourth proportional to 8,211.50, 12,315.42 and 2,368.56 is: 3,552.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.50 : 12,315.42 = 2,368.56 : x
  2. Step 2: Convert to fraction form
    8,211.50/12,315.42 = 2,368.56/x
  3. Step 3: Cross multiply
    8,211.50x = 12,315.42 × 2,368.56
  4. Step 4: Simplify right side
    8,211.50x = 29,169,811.20
  5. Step 5: Solve for x
    x = 29,169,811.20/8,211.50
  6. Step 6: Final answer
    x = 3,552.31

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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.