Home / 8,760.68-12,090.75-4,880.48

Finding the Fourth Proportional to 8,760.68, 12,090.75 and 4,880.48

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Solution

The fourth proportional to 8,760.68, 12,090.75 and 4,880.48 is: 6,735.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.68 : 12,090.75 = 4,880.48 : x
  2. Step 2: Convert to fraction form
    8,760.68/12,090.75 = 4,880.48/x
  3. Step 3: Cross multiply
    8,760.68x = 12,090.75 × 4,880.48
  4. Step 4: Simplify right side
    8,760.68x = 59,008,603.11
  5. Step 5: Solve for x
    x = 59,008,603.11/8,760.68
  6. Step 6: Final answer
    x = 6,735.62

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1.5x scale

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.