Home / 7,014.56-9,680.30-3,870.95

Finding the Fourth Proportional to 7,014.56, 9,680.30 and 3,870.95

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Solution

The fourth proportional to 7,014.56, 9,680.30 and 3,870.95 is: 5,342.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,014.56 : 9,680.30 = 3,870.95 : x
  2. Step 2: Convert to fraction form
    7,014.56/9,680.30 = 3,870.95/x
  3. Step 3: Cross multiply
    7,014.56x = 9,680.30 × 3,870.95
  4. Step 4: Simplify right side
    7,014.56x = 37,471,976.65
  5. Step 5: Solve for x
    x = 37,471,976.65/7,014.56
  6. Step 6: Final answer
    x = 5,342.03

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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.