Home / 6,970.16-9,615.68-4,137.65

Finding the Fourth Proportional to 6,970.16, 9,615.68 and 4,137.65

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Solution

The fourth proportional to 6,970.16, 9,615.68 and 4,137.65 is: 5,708.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,970.16 : 9,615.68 = 4,137.65 : x
  2. Step 2: Convert to fraction form
    6,970.16/9,615.68 = 4,137.65/x
  3. Step 3: Cross multiply
    6,970.16x = 9,615.68 × 4,137.65
  4. Step 4: Simplify right side
    6,970.16x = 39,786,318.35
  5. Step 5: Solve for x
    x = 39,786,318.35/6,970.16
  6. Step 6: Final answer
    x = 5,708.09

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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.