Home / 19,761.90-27,271.44-11,148.19

Finding the Fourth Proportional to 19,761.90, 27,271.44 and 11,148.19

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Solution

The fourth proportional to 19,761.90, 27,271.44 and 11,148.19 is: 15,384.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.90 : 27,271.44 = 11,148.19 : x
  2. Step 2: Convert to fraction form
    19,761.90/27,271.44 = 11,148.19/x
  3. Step 3: Cross multiply
    19,761.90x = 27,271.44 × 11,148.19
  4. Step 4: Simplify right side
    19,761.90x = 304,027,194.69
  5. Step 5: Solve for x
    x = 304,027,194.69/19,761.90
  6. Step 6: Final answer
    x = 15,384.51

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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.