Home / 19,357.67-26,721.74-13,078.55

Finding the Fourth Proportional to 19,357.67, 26,721.74 and 13,078.55

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Solution

The fourth proportional to 19,357.67, 26,721.74 and 13,078.55 is: 18,053.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,357.67 : 26,721.74 = 13,078.55 : x
  2. Step 2: Convert to fraction form
    19,357.67/26,721.74 = 13,078.55/x
  3. Step 3: Cross multiply
    19,357.67x = 26,721.74 × 13,078.55
  4. Step 4: Simplify right side
    19,357.67x = 349,481,511.76
  5. Step 5: Solve for x
    x = 349,481,511.76/19,357.67
  6. Step 6: Final answer
    x = 18,053.91

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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.