Home / 14,520.96-21,788.64-6,720.48

Finding the Fourth Proportional to 14,520.96, 21,788.64 and 6,720.48

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Solution

The fourth proportional to 14,520.96, 21,788.64 and 6,720.48 is: 10,084.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.96 : 21,788.64 = 6,720.48 : x
  2. Step 2: Convert to fraction form
    14,520.96/21,788.64 = 6,720.48/x
  3. Step 3: Cross multiply
    14,520.96x = 21,788.64 × 6,720.48
  4. Step 4: Simplify right side
    14,520.96x = 146,430,119.35
  5. Step 5: Solve for x
    x = 146,430,119.35/14,520.96
  6. Step 6: Final answer
    x = 10,084.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.