Home / 14,289.92-19,720.68-8,002.36

Finding the Fourth Proportional to 14,289.92, 19,720.68 and 8,002.36

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Solution

The fourth proportional to 14,289.92, 19,720.68 and 8,002.36 is: 11,043.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.92 : 19,720.68 = 8,002.36 : x
  2. Step 2: Convert to fraction form
    14,289.92/19,720.68 = 8,002.36/x
  3. Step 3: Cross multiply
    14,289.92x = 19,720.68 × 8,002.36
  4. Step 4: Simplify right side
    14,289.92x = 157,811,980.80
  5. Step 5: Solve for x
    x = 157,811,980.80/14,289.92
  6. Step 6: Final answer
    x = 11,043.59

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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.