Home / 8,680.58-13,004.55-4,292.90

Finding the Fourth Proportional to 8,680.58, 13,004.55 and 4,292.90

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Solution

The fourth proportional to 8,680.58, 13,004.55 and 4,292.90 is: 6,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.58 : 13,004.55 = 4,292.90 : x
  2. Step 2: Convert to fraction form
    8,680.58/13,004.55 = 4,292.90/x
  3. Step 3: Cross multiply
    8,680.58x = 13,004.55 × 4,292.90
  4. Step 4: Simplify right side
    8,680.58x = 55,827,232.70
  5. Step 5: Solve for x
    x = 55,827,232.70/8,680.58
  6. Step 6: Final answer
    x = 6,431.28

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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.