Home / 10,789.02-16,189.80-4,214.88

Finding the Fourth Proportional to 10,789.02, 16,189.80 and 4,214.88

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Solution

The fourth proportional to 10,789.02, 16,189.80 and 4,214.88 is: 6,324.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,789.02 : 16,189.80 = 4,214.88 : x
  2. Step 2: Convert to fraction form
    10,789.02/16,189.80 = 4,214.88/x
  3. Step 3: Cross multiply
    10,789.02x = 16,189.80 × 4,214.88
  4. Step 4: Simplify right side
    10,789.02x = 68,238,064.22
  5. Step 5: Solve for x
    x = 68,238,064.22/10,789.02
  6. Step 6: Final answer
    x = 6,324.77

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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.