Home / 18,744.90-28,103.46-11,347.62

Finding the Fourth Proportional to 18,744.90, 28,103.46 and 11,347.62

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Solution

The fourth proportional to 18,744.90, 28,103.46 and 11,347.62 is: 17,013.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,744.90 : 28,103.46 = 11,347.62 : x
  2. Step 2: Convert to fraction form
    18,744.90/28,103.46 = 11,347.62/x
  3. Step 3: Cross multiply
    18,744.90x = 28,103.46 × 11,347.62
  4. Step 4: Simplify right side
    18,744.90x = 318,907,384.77
  5. Step 5: Solve for x
    x = 318,907,384.77/18,744.90
  6. Step 6: Final answer
    x = 17,013.02

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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.