Home / 16,779.83-23,122.02-12,979.91

Finding the Fourth Proportional to 16,779.83, 23,122.02 and 12,979.91

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Solution

The fourth proportional to 16,779.83, 23,122.02 and 12,979.91 is: 17,885.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,779.83 : 23,122.02 = 12,979.91 : x
  2. Step 2: Convert to fraction form
    16,779.83/23,122.02 = 12,979.91/x
  3. Step 3: Cross multiply
    16,779.83x = 23,122.02 × 12,979.91
  4. Step 4: Simplify right side
    16,779.83x = 300,121,738.62
  5. Step 5: Solve for x
    x = 300,121,738.62/16,779.83
  6. Step 6: Final answer
    x = 17,885.86

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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.