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Finding the Fourth Proportional to 18,075.56, 27,079.11 and 10,657.98

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Solution

The fourth proportional to 18,075.56, 27,079.11 and 10,657.98 is: 15,966.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,075.56 : 27,079.11 = 10,657.98 : x
  2. Step 2: Convert to fraction form
    18,075.56/27,079.11 = 10,657.98/x
  3. Step 3: Cross multiply
    18,075.56x = 27,079.11 × 10,657.98
  4. Step 4: Simplify right side
    18,075.56x = 288,608,612.80
  5. Step 5: Solve for x
    x = 288,608,612.80/18,075.56
  6. Step 6: Final answer
    x = 15,966.79

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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.