Home / 19,431.23-26,810.74-11,469.18

Finding the Fourth Proportional to 19,431.23, 26,810.74 and 11,469.18

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Solution

The fourth proportional to 19,431.23, 26,810.74 and 11,469.18 is: 15,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.23 : 26,810.74 = 11,469.18 : x
  2. Step 2: Convert to fraction form
    19,431.23/26,810.74 = 11,469.18/x
  3. Step 3: Cross multiply
    19,431.23x = 26,810.74 × 11,469.18
  4. Step 4: Simplify right side
    19,431.23x = 307,497,145.65
  5. Step 5: Solve for x
    x = 307,497,145.65/19,431.23
  6. Step 6: Final answer
    x = 15,824.90

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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.