Home / 7,943.40-11,913.35-3,012.93

Finding the Fourth Proportional to 7,943.40, 11,913.35 and 3,012.93

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Solution

The fourth proportional to 7,943.40, 11,913.35 and 3,012.93 is: 4,518.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.40 : 11,913.35 = 3,012.93 : x
  2. Step 2: Convert to fraction form
    7,943.40/11,913.35 = 3,012.93/x
  3. Step 3: Cross multiply
    7,943.40x = 11,913.35 × 3,012.93
  4. Step 4: Simplify right side
    7,943.40x = 35,894,074.55
  5. Step 5: Solve for x
    x = 35,894,074.55/7,943.40
  6. Step 6: Final answer
    x = 4,518.73

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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.