Home / 19,126.63-28,665.60-10,811.31

Finding the Fourth Proportional to 19,126.63, 28,665.60 and 10,811.31

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Solution

The fourth proportional to 19,126.63, 28,665.60 and 10,811.31 is: 16,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.63 : 28,665.60 = 10,811.31 : x
  2. Step 2: Convert to fraction form
    19,126.63/28,665.60 = 10,811.31/x
  3. Step 3: Cross multiply
    19,126.63x = 28,665.60 × 10,811.31
  4. Step 4: Simplify right side
    19,126.63x = 309,912,539.90
  5. Step 5: Solve for x
    x = 309,912,539.90/19,126.63
  6. Step 6: Final answer
    x = 16,203.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.