Home / 16,890.96-23,309.12-9,819.84

Finding the Fourth Proportional to 16,890.96, 23,309.12 and 9,819.84

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Solution

The fourth proportional to 16,890.96, 23,309.12 and 9,819.84 is: 13,551.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.96 : 23,309.12 = 9,819.84 : x
  2. Step 2: Convert to fraction form
    16,890.96/23,309.12 = 9,819.84/x
  3. Step 3: Cross multiply
    16,890.96x = 23,309.12 × 9,819.84
  4. Step 4: Simplify right side
    16,890.96x = 228,891,828.94
  5. Step 5: Solve for x
    x = 228,891,828.94/16,890.96
  6. Step 6: Final answer
    x = 13,551.14

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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.