Home / 10,181.20-15,266.40-3,607.60

Finding the Fourth Proportional to 10,181.20, 15,266.40 and 3,607.60

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Solution

The fourth proportional to 10,181.20, 15,266.40 and 3,607.60 is: 5,409.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,181.20 : 15,266.40 = 3,607.60 : x
  2. Step 2: Convert to fraction form
    10,181.20/15,266.40 = 3,607.60/x
  3. Step 3: Cross multiply
    10,181.20x = 15,266.40 × 3,607.60
  4. Step 4: Simplify right side
    10,181.20x = 55,075,064.64
  5. Step 5: Solve for x
    x = 55,075,064.64/10,181.20
  6. Step 6: Final answer
    x = 5,409.49

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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.