Home / 7,709.56-11,567.06-2,515.40

Finding the Fourth Proportional to 7,709.56, 11,567.06 and 2,515.40

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Solution

The fourth proportional to 7,709.56, 11,567.06 and 2,515.40 is: 3,773.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.56 : 11,567.06 = 2,515.40 : x
  2. Step 2: Convert to fraction form
    7,709.56/11,567.06 = 2,515.40/x
  3. Step 3: Cross multiply
    7,709.56x = 11,567.06 × 2,515.40
  4. Step 4: Simplify right side
    7,709.56x = 29,095,782.72
  5. Step 5: Solve for x
    x = 29,095,782.72/7,709.56
  6. Step 6: Final answer
    x = 3,773.99

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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.