Home / 8,504.20-11,707.98-6,708.40

Finding the Fourth Proportional to 8,504.20, 11,707.98 and 6,708.40

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Solution

The fourth proportional to 8,504.20, 11,707.98 and 6,708.40 is: 9,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,504.20 : 11,707.98 = 6,708.40 : x
  2. Step 2: Convert to fraction form
    8,504.20/11,707.98 = 6,708.40/x
  3. Step 3: Cross multiply
    8,504.20x = 11,707.98 × 6,708.40
  4. Step 4: Simplify right side
    8,504.20x = 78,541,813.03
  5. Step 5: Solve for x
    x = 78,541,813.03/8,504.20
  6. Step 6: Final answer
    x = 9,235.65

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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.