Home / 7,111.40-10,667.10-3,826.04

Finding the Fourth Proportional to 7,111.40, 10,667.10 and 3,826.04

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Solution

The fourth proportional to 7,111.40, 10,667.10 and 3,826.04 is: 5,739.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.40 : 10,667.10 = 3,826.04 : x
  2. Step 2: Convert to fraction form
    7,111.40/10,667.10 = 3,826.04/x
  3. Step 3: Cross multiply
    7,111.40x = 10,667.10 × 3,826.04
  4. Step 4: Simplify right side
    7,111.40x = 40,812,751.28
  5. Step 5: Solve for x
    x = 40,812,751.28/7,111.40
  6. Step 6: Final answer
    x = 5,739.06

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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.