Home / 8,520.69-11,760.30-4,984.77

Finding the Fourth Proportional to 8,520.69, 11,760.30 and 4,984.77

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Solution

The fourth proportional to 8,520.69, 11,760.30 and 4,984.77 is: 6,880.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.69 : 11,760.30 = 4,984.77 : x
  2. Step 2: Convert to fraction form
    8,520.69/11,760.30 = 4,984.77/x
  3. Step 3: Cross multiply
    8,520.69x = 11,760.30 × 4,984.77
  4. Step 4: Simplify right side
    8,520.69x = 58,622,390.63
  5. Step 5: Solve for x
    x = 58,622,390.63/8,520.69
  6. Step 6: Final answer
    x = 6,880.01

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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.