Home / 15,327.99-21,152.61-8,958.96

Finding the Fourth Proportional to 15,327.99, 21,152.61 and 8,958.96

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Solution

The fourth proportional to 15,327.99, 21,152.61 and 8,958.96 is: 12,363.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327.99 : 21,152.61 = 8,958.96 : x
  2. Step 2: Convert to fraction form
    15,327.99/21,152.61 = 8,958.96/x
  3. Step 3: Cross multiply
    15,327.99x = 21,152.61 × 8,958.96
  4. Step 4: Simplify right side
    15,327.99x = 189,505,342.09
  5. Step 5: Solve for x
    x = 189,505,342.09/15,327.99
  6. Step 6: Final answer
    x = 12,363.35

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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.