Home / 16,943.70-25,379.10-9,143.40

Finding the Fourth Proportional to 16,943.70, 25,379.10 and 9,143.40

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Solution

The fourth proportional to 16,943.70, 25,379.10 and 9,143.40 is: 13,695.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,943.70 : 25,379.10 = 9,143.40 : x
  2. Step 2: Convert to fraction form
    16,943.70/25,379.10 = 9,143.40/x
  3. Step 3: Cross multiply
    16,943.70x = 25,379.10 × 9,143.40
  4. Step 4: Simplify right side
    16,943.70x = 232,051,262.94
  5. Step 5: Solve for x
    x = 232,051,262.94/16,943.70
  6. Step 6: Final answer
    x = 13,695.43

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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.