Home / 8,983.82-13,475.81-3,140.45

Finding the Fourth Proportional to 8,983.82, 13,475.81 and 3,140.45

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Solution

The fourth proportional to 8,983.82, 13,475.81 and 3,140.45 is: 4,710.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.82 : 13,475.81 = 3,140.45 : x
  2. Step 2: Convert to fraction form
    8,983.82/13,475.81 = 3,140.45/x
  3. Step 3: Cross multiply
    8,983.82x = 13,475.81 × 3,140.45
  4. Step 4: Simplify right side
    8,983.82x = 42,320,107.51
  5. Step 5: Solve for x
    x = 42,320,107.51/8,983.82
  6. Step 6: Final answer
    x = 4,710.70

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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.