Home / 14,742.08-20,342.40-8,456.48

Finding the Fourth Proportional to 14,742.08, 20,342.40 and 8,456.48

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Solution

The fourth proportional to 14,742.08, 20,342.40 and 8,456.48 is: 11,668.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.08 : 20,342.40 = 8,456.48 : x
  2. Step 2: Convert to fraction form
    14,742.08/20,342.40 = 8,456.48/x
  3. Step 3: Cross multiply
    14,742.08x = 20,342.40 × 8,456.48
  4. Step 4: Simplify right side
    14,742.08x = 172,025,098.75
  5. Step 5: Solve for x
    x = 172,025,098.75/14,742.08
  6. Step 6: Final answer
    x = 11,668.98

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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.