Home / 16,990.43-25,501.21-9,101.85

Finding the Fourth Proportional to 16,990.43, 25,501.21 and 9,101.85

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Solution

The fourth proportional to 16,990.43, 25,501.21 and 9,101.85 is: 13,661.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.43 : 25,501.21 = 9,101.85 : x
  2. Step 2: Convert to fraction form
    16,990.43/25,501.21 = 9,101.85/x
  3. Step 3: Cross multiply
    16,990.43x = 25,501.21 × 9,101.85
  4. Step 4: Simplify right side
    16,990.43x = 232,108,184.31
  5. Step 5: Solve for x
    x = 232,108,184.31/16,990.43
  6. Step 6: Final answer
    x = 13,661.12

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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.