Home / 8,237.12-12,345.35-3,551.81

Finding the Fourth Proportional to 8,237.12, 12,345.35 and 3,551.81

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Solution

The fourth proportional to 8,237.12, 12,345.35 and 3,551.81 is: 5,323.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,237.12 : 12,345.35 = 3,551.81 : x
  2. Step 2: Convert to fraction form
    8,237.12/12,345.35 = 3,551.81/x
  3. Step 3: Cross multiply
    8,237.12x = 12,345.35 × 3,551.81
  4. Step 4: Simplify right side
    8,237.12x = 43,848,258.10
  5. Step 5: Solve for x
    x = 43,848,258.10/8,237.12
  6. Step 6: Final answer
    x = 5,323.25

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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.