Home / 6,762.49-10,143.73-2,145.13

Finding the Fourth Proportional to 6,762.49, 10,143.73 and 2,145.13

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Solution

The fourth proportional to 6,762.49, 10,143.73 and 2,145.13 is: 3,217.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,762.49 : 10,143.73 = 2,145.13 : x
  2. Step 2: Convert to fraction form
    6,762.49/10,143.73 = 2,145.13/x
  3. Step 3: Cross multiply
    6,762.49x = 10,143.73 × 2,145.13
  4. Step 4: Simplify right side
    6,762.49x = 21,759,563.45
  5. Step 5: Solve for x
    x = 21,759,563.45/6,762.49
  6. Step 6: Final answer
    x = 3,217.69

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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.