Home / 14,790.05-20,409.94-8,075.42

Finding the Fourth Proportional to 14,790.05, 20,409.94 and 8,075.42

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Solution

The fourth proportional to 14,790.05, 20,409.94 and 8,075.42 is: 11,143.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,790.05 : 20,409.94 = 8,075.42 : x
  2. Step 2: Convert to fraction form
    14,790.05/20,409.94 = 8,075.42/x
  3. Step 3: Cross multiply
    14,790.05x = 20,409.94 × 8,075.42
  4. Step 4: Simplify right side
    14,790.05x = 164,818,837.67
  5. Step 5: Solve for x
    x = 164,818,837.67/14,790.05
  6. Step 6: Final answer
    x = 11,143.90

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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.