Home / 11,619.25-17,421.72-6,938.35

Finding the Fourth Proportional to 11,619.25, 17,421.72 and 6,938.35

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Solution

The fourth proportional to 11,619.25, 17,421.72 and 6,938.35 is: 10,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.25 : 17,421.72 = 6,938.35 : x
  2. Step 2: Convert to fraction form
    11,619.25/17,421.72 = 6,938.35/x
  3. Step 3: Cross multiply
    11,619.25x = 17,421.72 × 6,938.35
  4. Step 4: Simplify right side
    11,619.25x = 120,877,990.96
  5. Step 5: Solve for x
    x = 120,877,990.96/11,619.25
  6. Step 6: Final answer
    x = 10,403.25

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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.