Home / 14,789.87-20,409.92-8,075.50

Finding the Fourth Proportional to 14,789.87, 20,409.92 and 8,075.50

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Solution

The fourth proportional to 14,789.87, 20,409.92 and 8,075.50 is: 11,144.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.87 : 20,409.92 = 8,075.50 : x
  2. Step 2: Convert to fraction form
    14,789.87/20,409.92 = 8,075.50/x
  3. Step 3: Cross multiply
    14,789.87x = 20,409.92 × 8,075.50
  4. Step 4: Simplify right side
    14,789.87x = 164,820,293.27
  5. Step 5: Solve for x
    x = 164,820,293.27/14,789.87
  6. Step 6: Final answer
    x = 11,144.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.