Home / 11,271.75-15,569.78-8,651.40

Finding the Fourth Proportional to 11,271.75, 15,569.78 and 8,651.40

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Solution

The fourth proportional to 11,271.75, 15,569.78 and 8,651.40 is: 11,950.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.75 : 15,569.78 = 8,651.40 : x
  2. Step 2: Convert to fraction form
    11,271.75/15,569.78 = 8,651.40/x
  3. Step 3: Cross multiply
    11,271.75x = 15,569.78 × 8,651.40
  4. Step 4: Simplify right side
    11,271.75x = 134,700,394.69
  5. Step 5: Solve for x
    x = 134,700,394.69/11,271.75
  6. Step 6: Final answer
    x = 11,950.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.