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Finding the Fourth Proportional to 10,190.94, 15,264.78 and 4,918.20

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Solution

The fourth proportional to 10,190.94, 15,264.78 and 4,918.20 is: 7,366.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,190.94 : 15,264.78 = 4,918.20 : x
  2. Step 2: Convert to fraction form
    10,190.94/15,264.78 = 4,918.20/x
  3. Step 3: Cross multiply
    10,190.94x = 15,264.78 × 4,918.20
  4. Step 4: Simplify right side
    10,190.94x = 75,075,241.00
  5. Step 5: Solve for x
    x = 75,075,241.00/10,190.94
  6. Step 6: Final answer
    x = 7,366.86

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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.