Home / 10,506.89-15,762.64-3,111.93

Finding the Fourth Proportional to 10,506.89, 15,762.64 and 3,111.93

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Solution

The fourth proportional to 10,506.89, 15,762.64 and 3,111.93 is: 4,668.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,506.89 : 15,762.64 = 3,111.93 : x
  2. Step 2: Convert to fraction form
    10,506.89/15,762.64 = 3,111.93/x
  3. Step 3: Cross multiply
    10,506.89x = 15,762.64 × 3,111.93
  4. Step 4: Simplify right side
    10,506.89x = 49,052,137.92
  5. Step 5: Solve for x
    x = 49,052,137.92/10,506.89
  6. Step 6: Final answer
    x = 4,668.57

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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.