Home / 18,361.45-25,338.69-9,977.95

Finding the Fourth Proportional to 18,361.45, 25,338.69 and 9,977.95

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Solution

The fourth proportional to 18,361.45, 25,338.69 and 9,977.95 is: 13,769.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,361.45 : 25,338.69 = 9,977.95 : x
  2. Step 2: Convert to fraction form
    18,361.45/25,338.69 = 9,977.95/x
  3. Step 3: Cross multiply
    18,361.45x = 25,338.69 × 9,977.95
  4. Step 4: Simplify right side
    18,361.45x = 252,828,181.89
  5. Step 5: Solve for x
    x = 252,828,181.89/18,361.45
  6. Step 6: Final answer
    x = 13,769.51

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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.