Home / 19,390.63-26,757.15-10,890.82

Finding the Fourth Proportional to 19,390.63, 26,757.15 and 10,890.82

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Solution

The fourth proportional to 19,390.63, 26,757.15 and 10,890.82 is: 15,028.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.63 : 26,757.15 = 10,890.82 : x
  2. Step 2: Convert to fraction form
    19,390.63/26,757.15 = 10,890.82/x
  3. Step 3: Cross multiply
    19,390.63x = 26,757.15 × 10,890.82
  4. Step 4: Simplify right side
    19,390.63x = 291,407,304.36
  5. Step 5: Solve for x
    x = 291,407,304.36/19,390.63
  6. Step 6: Final answer
    x = 15,028.25

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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.