Home / 8,376.77-12,555.56-3,440.27

Finding the Fourth Proportional to 8,376.77, 12,555.56 and 3,440.27

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Solution

The fourth proportional to 8,376.77, 12,555.56 and 3,440.27 is: 5,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.77 : 12,555.56 = 3,440.27 : x
  2. Step 2: Convert to fraction form
    8,376.77/12,555.56 = 3,440.27/x
  3. Step 3: Cross multiply
    8,376.77x = 12,555.56 × 3,440.27
  4. Step 4: Simplify right side
    8,376.77x = 43,194,537.04
  5. Step 5: Solve for x
    x = 43,194,537.04/8,376.77
  6. Step 6: Final answer
    x = 5,156.47

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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.