Home / 9,515.97-13,128.84-6,163.02

Finding the Fourth Proportional to 9,515.97, 13,128.84 and 6,163.02

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Solution

The fourth proportional to 9,515.97, 13,128.84 and 6,163.02 is: 8,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.97 : 13,128.84 = 6,163.02 : x
  2. Step 2: Convert to fraction form
    9,515.97/13,128.84 = 6,163.02/x
  3. Step 3: Cross multiply
    9,515.97x = 13,128.84 × 6,163.02
  4. Step 4: Simplify right side
    9,515.97x = 80,913,303.50
  5. Step 5: Solve for x
    x = 80,913,303.50/9,515.97
  6. Step 6: Final answer
    x = 8,502.90

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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.