Home / 7,827.95-11,741.70-3,146.51

Finding the Fourth Proportional to 7,827.95, 11,741.70 and 3,146.51

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Solution

The fourth proportional to 7,827.95, 11,741.70 and 3,146.51 is: 4,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827.95 : 11,741.70 = 3,146.51 : x
  2. Step 2: Convert to fraction form
    7,827.95/11,741.70 = 3,146.51/x
  3. Step 3: Cross multiply
    7,827.95x = 11,741.70 × 3,146.51
  4. Step 4: Simplify right side
    7,827.95x = 36,945,376.47
  5. Step 5: Solve for x
    x = 36,945,376.47/7,827.95
  6. Step 6: Final answer
    x = 4,719.67

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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.