Home / 19,191.08-26,489.40-12,122.21

Finding the Fourth Proportional to 19,191.08, 26,489.40 and 12,122.21

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Solution

The fourth proportional to 19,191.08, 26,489.40 and 12,122.21 is: 16,732.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.08 : 26,489.40 = 12,122.21 : x
  2. Step 2: Convert to fraction form
    19,191.08/26,489.40 = 12,122.21/x
  3. Step 3: Cross multiply
    19,191.08x = 26,489.40 × 12,122.21
  4. Step 4: Simplify right side
    19,191.08x = 321,110,090.34
  5. Step 5: Solve for x
    x = 321,110,090.34/19,191.08
  6. Step 6: Final answer
    x = 16,732.26

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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.