Home / 7,015.13-9,680.48-4,185.71

Finding the Fourth Proportional to 7,015.13, 9,680.48 and 4,185.71

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Solution

The fourth proportional to 7,015.13, 9,680.48 and 4,185.71 is: 5,776.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.13 : 9,680.48 = 4,185.71 : x
  2. Step 2: Convert to fraction form
    7,015.13/9,680.48 = 4,185.71/x
  3. Step 3: Cross multiply
    7,015.13x = 9,680.48 × 4,185.71
  4. Step 4: Simplify right side
    7,015.13x = 40,519,661.01
  5. Step 5: Solve for x
    x = 40,519,661.01/7,015.13
  6. Step 6: Final answer
    x = 5,776.04

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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.