Home / 8,681.14-13,021.73-2,107.32

Finding the Fourth Proportional to 8,681.14, 13,021.73 and 2,107.32

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Solution

The fourth proportional to 8,681.14, 13,021.73 and 2,107.32 is: 3,160.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.14 : 13,021.73 = 2,107.32 : x
  2. Step 2: Convert to fraction form
    8,681.14/13,021.73 = 2,107.32/x
  3. Step 3: Cross multiply
    8,681.14x = 13,021.73 × 2,107.32
  4. Step 4: Simplify right side
    8,681.14x = 27,440,892.22
  5. Step 5: Solve for x
    x = 27,440,892.22/8,681.14
  6. Step 6: Final answer
    x = 3,160.98

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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.