Home / 10,860.88-16,280.29-4,278.01

Finding the Fourth Proportional to 10,860.88, 16,280.29 and 4,278.01

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Solution

The fourth proportional to 10,860.88, 16,280.29 and 4,278.01 is: 6,412.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.88 : 16,280.29 = 4,278.01 : x
  2. Step 2: Convert to fraction form
    10,860.88/16,280.29 = 4,278.01/x
  3. Step 3: Cross multiply
    10,860.88x = 16,280.29 × 4,278.01
  4. Step 4: Simplify right side
    10,860.88x = 69,647,243.42
  5. Step 5: Solve for x
    x = 69,647,243.42/10,860.88
  6. Step 6: Final answer
    x = 6,412.67

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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.