Home / 14,090.68-19,445.40-8,121.34

Finding the Fourth Proportional to 14,090.68, 19,445.40 and 8,121.34

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Solution

The fourth proportional to 14,090.68, 19,445.40 and 8,121.34 is: 11,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090.68 : 19,445.40 = 8,121.34 : x
  2. Step 2: Convert to fraction form
    14,090.68/19,445.40 = 8,121.34/x
  3. Step 3: Cross multiply
    14,090.68x = 19,445.40 × 8,121.34
  4. Step 4: Simplify right side
    14,090.68x = 157,922,704.84
  5. Step 5: Solve for x
    x = 157,922,704.84/14,090.68
  6. Step 6: Final answer
    x = 11,207.60

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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.