Home / 15,727.60-21,704.01-8,653.99

Finding the Fourth Proportional to 15,727.60, 21,704.01 and 8,653.99

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Solution

The fourth proportional to 15,727.60, 21,704.01 and 8,653.99 is: 11,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,727.60 : 21,704.01 = 8,653.99 : x
  2. Step 2: Convert to fraction form
    15,727.60/21,704.01 = 8,653.99/x
  3. Step 3: Cross multiply
    15,727.60x = 21,704.01 × 8,653.99
  4. Step 4: Simplify right side
    15,727.60x = 187,826,285.50
  5. Step 5: Solve for x
    x = 187,826,285.50/15,727.60
  6. Step 6: Final answer
    x = 11,942.46

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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.