Home / 15,999.46-23,999.14-5,611.21

Finding the Fourth Proportional to 15,999.46, 23,999.14 and 5,611.21

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Solution

The fourth proportional to 15,999.46, 23,999.14 and 5,611.21 is: 8,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.46 : 23,999.14 = 5,611.21 : x
  2. Step 2: Convert to fraction form
    15,999.46/23,999.14 = 5,611.21/x
  3. Step 3: Cross multiply
    15,999.46x = 23,999.14 × 5,611.21
  4. Step 4: Simplify right side
    15,999.46x = 134,664,214.36
  5. Step 5: Solve for x
    x = 134,664,214.36/15,999.46
  6. Step 6: Final answer
    x = 8,416.80

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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.