Home / 16,980.88-25,438.14-11,119.72

Finding the Fourth Proportional to 16,980.88, 25,438.14 and 11,119.72

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Solution

The fourth proportional to 16,980.88, 25,438.14 and 11,119.72 is: 16,657.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,980.88 : 25,438.14 = 11,119.72 : x
  2. Step 2: Convert to fraction form
    16,980.88/25,438.14 = 11,119.72/x
  3. Step 3: Cross multiply
    16,980.88x = 25,438.14 × 11,119.72
  4. Step 4: Simplify right side
    16,980.88x = 282,864,994.12
  5. Step 5: Solve for x
    x = 282,864,994.12/16,980.88
  6. Step 6: Final answer
    x = 16,657.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.