Home / 8,675.90-13,013.81-2,102.09

Finding the Fourth Proportional to 8,675.90, 13,013.81 and 2,102.09

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Solution

The fourth proportional to 8,675.90, 13,013.81 and 2,102.09 is: 3,153.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.90 : 13,013.81 = 2,102.09 : x
  2. Step 2: Convert to fraction form
    8,675.90/13,013.81 = 2,102.09/x
  3. Step 3: Cross multiply
    8,675.90x = 13,013.81 × 2,102.09
  4. Step 4: Simplify right side
    8,675.90x = 27,356,124.28
  5. Step 5: Solve for x
    x = 27,356,124.28/8,675.90
  6. Step 6: Final answer
    x = 3,153.12

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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.