Home / 14,720.72-20,308.60-8,345.96

Finding the Fourth Proportional to 14,720.72, 20,308.60 and 8,345.96

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Solution

The fourth proportional to 14,720.72, 20,308.60 and 8,345.96 is: 11,514.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,720.72 : 20,308.60 = 8,345.96 : x
  2. Step 2: Convert to fraction form
    14,720.72/20,308.60 = 8,345.96/x
  3. Step 3: Cross multiply
    14,720.72x = 20,308.60 × 8,345.96
  4. Step 4: Simplify right side
    14,720.72x = 169,494,763.26
  5. Step 5: Solve for x
    x = 169,494,763.26/14,720.72
  6. Step 6: Final answer
    x = 11,514.03

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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.