Home / 8,631.51-12,947.81-3,437.25

Finding the Fourth Proportional to 8,631.51, 12,947.81 and 3,437.25

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Solution

The fourth proportional to 8,631.51, 12,947.81 and 3,437.25 is: 5,156.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.51 : 12,947.81 = 3,437.25 : x
  2. Step 2: Convert to fraction form
    8,631.51/12,947.81 = 3,437.25/x
  3. Step 3: Cross multiply
    8,631.51x = 12,947.81 × 3,437.25
  4. Step 4: Simplify right side
    8,631.51x = 44,504,842.74
  5. Step 5: Solve for x
    x = 44,504,842.74/8,631.51
  6. Step 6: Final answer
    x = 5,156.09

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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.