Home / 8,220.32-11,343.46-4,635.40

Finding the Fourth Proportional to 8,220.32, 11,343.46 and 4,635.40

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Solution

The fourth proportional to 8,220.32, 11,343.46 and 4,635.40 is: 6,396.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.32 : 11,343.46 = 4,635.40 : x
  2. Step 2: Convert to fraction form
    8,220.32/11,343.46 = 4,635.40/x
  3. Step 3: Cross multiply
    8,220.32x = 11,343.46 × 4,635.40
  4. Step 4: Simplify right side
    8,220.32x = 52,581,474.48
  5. Step 5: Solve for x
    x = 52,581,474.48/8,220.32
  6. Step 6: Final answer
    x = 6,396.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.