Home / 16,890.20-23,309.40-10,926.98

Finding the Fourth Proportional to 16,890.20, 23,309.40 and 10,926.98

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Solution

The fourth proportional to 16,890.20, 23,309.40 and 10,926.98 is: 15,079.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.20 : 23,309.40 = 10,926.98 : x
  2. Step 2: Convert to fraction form
    16,890.20/23,309.40 = 10,926.98/x
  3. Step 3: Cross multiply
    16,890.20x = 23,309.40 × 10,926.98
  4. Step 4: Simplify right side
    16,890.20x = 254,701,231.07
  5. Step 5: Solve for x
    x = 254,701,231.07/16,890.20
  6. Step 6: Final answer
    x = 15,079.83

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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.