Home / 19,364.51-26,721.78-11,405.18

Finding the Fourth Proportional to 19,364.51, 26,721.78 and 11,405.18

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Solution

The fourth proportional to 19,364.51, 26,721.78 and 11,405.18 is: 15,738.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,364.51 : 26,721.78 = 11,405.18 : x
  2. Step 2: Convert to fraction form
    19,364.51/26,721.78 = 11,405.18/x
  3. Step 3: Cross multiply
    19,364.51x = 26,721.78 × 11,405.18
  4. Step 4: Simplify right side
    19,364.51x = 304,766,710.82
  5. Step 5: Solve for x
    x = 304,766,710.82/19,364.51
  6. Step 6: Final answer
    x = 15,738.42

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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.