Home / 7,106.13-10,659.47-1,912.14

Finding the Fourth Proportional to 7,106.13, 10,659.47 and 1,912.14

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Solution

The fourth proportional to 7,106.13, 10,659.47 and 1,912.14 is: 2,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.13 : 10,659.47 = 1,912.14 : x
  2. Step 2: Convert to fraction form
    7,106.13/10,659.47 = 1,912.14/x
  3. Step 3: Cross multiply
    7,106.13x = 10,659.47 × 1,912.14
  4. Step 4: Simplify right side
    7,106.13x = 20,382,389.41
  5. Step 5: Solve for x
    x = 20,382,389.41/7,106.13
  6. Step 6: Final answer
    x = 2,868.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.