Home / 7,743.16-10,686.42-4,911.40

Finding the Fourth Proportional to 7,743.16, 10,686.42 and 4,911.40

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Solution

The fourth proportional to 7,743.16, 10,686.42 and 4,911.40 is: 6,778.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.16 : 10,686.42 = 4,911.40 : x
  2. Step 2: Convert to fraction form
    7,743.16/10,686.42 = 4,911.40/x
  3. Step 3: Cross multiply
    7,743.16x = 10,686.42 × 4,911.40
  4. Step 4: Simplify right side
    7,743.16x = 52,485,283.19
  5. Step 5: Solve for x
    x = 52,485,283.19/7,743.16
  6. Step 6: Final answer
    x = 6,778.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.