Home / 6,485.38-8,950.99-5,085.70

Finding the Fourth Proportional to 6,485.38, 8,950.99 and 5,085.70

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Solution

The fourth proportional to 6,485.38, 8,950.99 and 5,085.70 is: 7,019.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.38 : 8,950.99 = 5,085.70 : x
  2. Step 2: Convert to fraction form
    6,485.38/8,950.99 = 5,085.70/x
  3. Step 3: Cross multiply
    6,485.38x = 8,950.99 × 5,085.70
  4. Step 4: Simplify right side
    6,485.38x = 45,522,049.84
  5. Step 5: Solve for x
    x = 45,522,049.84/6,485.38
  6. Step 6: Final answer
    x = 7,019.18

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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.