Home / 11,014.12-15,199.60-5,978.39

Finding the Fourth Proportional to 11,014.12, 15,199.60 and 5,978.39

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Solution

The fourth proportional to 11,014.12, 15,199.60 and 5,978.39 is: 8,250.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,014.12 : 15,199.60 = 5,978.39 : x
  2. Step 2: Convert to fraction form
    11,014.12/15,199.60 = 5,978.39/x
  3. Step 3: Cross multiply
    11,014.12x = 15,199.60 × 5,978.39
  4. Step 4: Simplify right side
    11,014.12x = 90,869,136.64
  5. Step 5: Solve for x
    x = 90,869,136.64/11,014.12
  6. Step 6: Final answer
    x = 8,250.24

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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.