Home / 7,686.63-11,529.81-2,492.51

Finding the Fourth Proportional to 7,686.63, 11,529.81 and 2,492.51

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Solution

The fourth proportional to 7,686.63, 11,529.81 and 2,492.51 is: 3,738.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.63 : 11,529.81 = 2,492.51 : x
  2. Step 2: Convert to fraction form
    7,686.63/11,529.81 = 2,492.51/x
  3. Step 3: Cross multiply
    7,686.63x = 11,529.81 × 2,492.51
  4. Step 4: Simplify right side
    7,686.63x = 28,738,109.07
  5. Step 5: Solve for x
    x = 28,738,109.07/7,686.63
  6. Step 6: Final answer
    x = 3,738.71

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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.