Home / 19,212.30-26,515.01-11,261.21

Finding the Fourth Proportional to 19,212.30, 26,515.01 and 11,261.21

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Solution

The fourth proportional to 19,212.30, 26,515.01 and 11,261.21 is: 15,541.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.30 : 26,515.01 = 11,261.21 : x
  2. Step 2: Convert to fraction form
    19,212.30/26,515.01 = 11,261.21/x
  3. Step 3: Cross multiply
    19,212.30x = 26,515.01 × 11,261.21
  4. Step 4: Simplify right side
    19,212.30x = 298,590,991.34
  5. Step 5: Solve for x
    x = 298,590,991.34/19,212.30
  6. Step 6: Final answer
    x = 15,541.66

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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.