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Finding the Fourth Proportional to 8,374.91, 12,562.47 and 3,443.45

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Solution

The fourth proportional to 8,374.91, 12,562.47 and 3,443.45 is: 5,165.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.91 : 12,562.47 = 3,443.45 : x
  2. Step 2: Convert to fraction form
    8,374.91/12,562.47 = 3,443.45/x
  3. Step 3: Cross multiply
    8,374.91x = 12,562.47 × 3,443.45
  4. Step 4: Simplify right side
    8,374.91x = 43,258,174.51
  5. Step 5: Solve for x
    x = 43,258,174.51/8,374.91
  6. Step 6: Final answer
    x = 5,165.21

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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.