Home / 18,623.18-25,699.91-11,075.31

Finding the Fourth Proportional to 18,623.18, 25,699.91 and 11,075.31

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Solution

The fourth proportional to 18,623.18, 25,699.91 and 11,075.31 is: 15,283.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,623.18 : 25,699.91 = 11,075.31 : x
  2. Step 2: Convert to fraction form
    18,623.18/25,699.91 = 11,075.31/x
  3. Step 3: Cross multiply
    18,623.18x = 25,699.91 × 11,075.31
  4. Step 4: Simplify right side
    18,623.18x = 284,634,414.85
  5. Step 5: Solve for x
    x = 284,634,414.85/18,623.18
  6. Step 6: Final answer
    x = 15,283.88

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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.