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Finding the Fourth Proportional to 18,759.87, 28,125.18 and 9,395.06

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Solution

The fourth proportional to 18,759.87, 28,125.18 and 9,395.06 is: 14,085.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759.87 : 28,125.18 = 9,395.06 : x
  2. Step 2: Convert to fraction form
    18,759.87/28,125.18 = 9,395.06/x
  3. Step 3: Cross multiply
    18,759.87x = 28,125.18 × 9,395.06
  4. Step 4: Simplify right side
    18,759.87x = 264,237,612.98
  5. Step 5: Solve for x
    x = 264,237,612.98/18,759.87
  6. Step 6: Final answer
    x = 14,085.26

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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.