Home / 14,789.56-20,409.63-8,075.19

Finding the Fourth Proportional to 14,789.56, 20,409.63 and 8,075.19

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Solution

The fourth proportional to 14,789.56, 20,409.63 and 8,075.19 is: 11,143.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.56 : 20,409.63 = 8,075.19 : x
  2. Step 2: Convert to fraction form
    14,789.56/20,409.63 = 8,075.19/x
  3. Step 3: Cross multiply
    14,789.56x = 20,409.63 × 8,075.19
  4. Step 4: Simplify right side
    14,789.56x = 164,811,640.08
  5. Step 5: Solve for x
    x = 164,811,640.08/14,789.56
  6. Step 6: Final answer
    x = 11,143.78

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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.