Home / 8,911.31-13,368.81-2,671.07

Finding the Fourth Proportional to 8,911.31, 13,368.81 and 2,671.07

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Solution

The fourth proportional to 8,911.31, 13,368.81 and 2,671.07 is: 4,007.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.31 : 13,368.81 = 2,671.07 : x
  2. Step 2: Convert to fraction form
    8,911.31/13,368.81 = 2,671.07/x
  3. Step 3: Cross multiply
    8,911.31x = 13,368.81 × 2,671.07
  4. Step 4: Simplify right side
    8,911.31x = 35,709,027.33
  5. Step 5: Solve for x
    x = 35,709,027.33/8,911.31
  6. Step 6: Final answer
    x = 4,007.16

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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.