Home / 19,139.07-26,405.37-11,964.09

Finding the Fourth Proportional to 19,139.07, 26,405.37 and 11,964.09

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Solution

The fourth proportional to 19,139.07, 26,405.37 and 11,964.09 is: 16,506.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.07 : 26,405.37 = 11,964.09 : x
  2. Step 2: Convert to fraction form
    19,139.07/26,405.37 = 11,964.09/x
  3. Step 3: Cross multiply
    19,139.07x = 26,405.37 × 11,964.09
  4. Step 4: Simplify right side
    19,139.07x = 315,916,223.16
  5. Step 5: Solve for x
    x = 315,916,223.16/19,139.07
  6. Step 6: Final answer
    x = 16,506.35

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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.