Home / 13,180.79-19,757.42-5,779.01

Finding the Fourth Proportional to 13,180.79, 19,757.42 and 5,779.01

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Solution

The fourth proportional to 13,180.79, 19,757.42 and 5,779.01 is: 8,662.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180.79 : 19,757.42 = 5,779.01 : x
  2. Step 2: Convert to fraction form
    13,180.79/19,757.42 = 5,779.01/x
  3. Step 3: Cross multiply
    13,180.79x = 19,757.42 × 5,779.01
  4. Step 4: Simplify right side
    13,180.79x = 114,178,369.92
  5. Step 5: Solve for x
    x = 114,178,369.92/13,180.79
  6. Step 6: Final answer
    x = 8,662.48

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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.