Home / 7,941.93-11,918.43-7,880.46

Finding the Fourth Proportional to 7,941.93, 11,918.43 and 7,880.46

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Solution

The fourth proportional to 7,941.93, 11,918.43 and 7,880.46 is: 11,826.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941.93 : 11,918.43 = 7,880.46 : x
  2. Step 2: Convert to fraction form
    7,941.93/11,918.43 = 7,880.46/x
  3. Step 3: Cross multiply
    7,941.93x = 11,918.43 × 7,880.46
  4. Step 4: Simplify right side
    7,941.93x = 93,922,710.88
  5. Step 5: Solve for x
    x = 93,922,710.88/7,941.93
  6. Step 6: Final answer
    x = 11,826.18

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1.5x scale

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.