Home / 12,158.76-16,779.24-6,853.44

Finding the Fourth Proportional to 12,158.76, 16,779.24 and 6,853.44

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Solution

The fourth proportional to 12,158.76, 16,779.24 and 6,853.44 is: 9,457.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158.76 : 16,779.24 = 6,853.44 : x
  2. Step 2: Convert to fraction form
    12,158.76/16,779.24 = 6,853.44/x
  3. Step 3: Cross multiply
    12,158.76x = 16,779.24 × 6,853.44
  4. Step 4: Simplify right side
    12,158.76x = 114,995,514.59
  5. Step 5: Solve for x
    x = 114,995,514.59/12,158.76
  6. Step 6: Final answer
    x = 9,457.83

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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.