Home / 11,817.90-17,712.45-5,237.10

Finding the Fourth Proportional to 11,817.90, 17,712.45 and 5,237.10

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Solution

The fourth proportional to 11,817.90, 17,712.45 and 5,237.10 is: 7,849.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,817.90 : 17,712.45 = 5,237.10 : x
  2. Step 2: Convert to fraction form
    11,817.90/17,712.45 = 5,237.10/x
  3. Step 3: Cross multiply
    11,817.90x = 17,712.45 × 5,237.10
  4. Step 4: Simplify right side
    11,817.90x = 92,761,871.90
  5. Step 5: Solve for x
    x = 92,761,871.90/11,817.90
  6. Step 6: Final answer
    x = 7,849.27

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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.