Home / 16,890.26-23,309.73-9,818.90

Finding the Fourth Proportional to 16,890.26, 23,309.73 and 9,818.90

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Solution

The fourth proportional to 16,890.26, 23,309.73 and 9,818.90 is: 13,550.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.26 : 23,309.73 = 9,818.90 : x
  2. Step 2: Convert to fraction form
    16,890.26/23,309.73 = 9,818.90/x
  3. Step 3: Cross multiply
    16,890.26x = 23,309.73 × 9,818.90
  4. Step 4: Simplify right side
    16,890.26x = 228,875,907.90
  5. Step 5: Solve for x
    x = 228,875,907.90/16,890.26
  6. Step 6: Final answer
    x = 13,550.76

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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.