Home / 19,386.82-26,754.47-10,890.44

Finding the Fourth Proportional to 19,386.82, 26,754.47 and 10,890.44

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Solution

The fourth proportional to 19,386.82, 26,754.47 and 10,890.44 is: 15,029.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.82 : 26,754.47 = 10,890.44 : x
  2. Step 2: Convert to fraction form
    19,386.82/26,754.47 = 10,890.44/x
  3. Step 3: Cross multiply
    19,386.82x = 26,754.47 × 10,890.44
  4. Step 4: Simplify right side
    19,386.82x = 291,367,950.27
  5. Step 5: Solve for x
    x = 291,367,950.27/19,386.82
  6. Step 6: Final answer
    x = 15,029.18

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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.