Home / 13,417.01-20,119.09-4,977.72

Finding the Fourth Proportional to 13,417.01, 20,119.09 and 4,977.72

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Solution

The fourth proportional to 13,417.01, 20,119.09 and 4,977.72 is: 7,464.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.01 : 20,119.09 = 4,977.72 : x
  2. Step 2: Convert to fraction form
    13,417.01/20,119.09 = 4,977.72/x
  3. Step 3: Cross multiply
    13,417.01x = 20,119.09 × 4,977.72
  4. Step 4: Simplify right side
    13,417.01x = 100,147,096.08
  5. Step 5: Solve for x
    x = 100,147,096.08/13,417.01
  6. Step 6: Final answer
    x = 7,464.19

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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.