Home / 14,789.31-20,409.35-8,075.04

Finding the Fourth Proportional to 14,789.31, 20,409.35 and 8,075.04

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Solution

The fourth proportional to 14,789.31, 20,409.35 and 8,075.04 is: 11,143.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.31 : 20,409.35 = 8,075.04 : x
  2. Step 2: Convert to fraction form
    14,789.31/20,409.35 = 8,075.04/x
  3. Step 3: Cross multiply
    14,789.31x = 20,409.35 × 8,075.04
  4. Step 4: Simplify right side
    14,789.31x = 164,806,277.25
  5. Step 5: Solve for x
    x = 164,806,277.25/14,789.31
  6. Step 6: Final answer
    x = 11,143.61

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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.