Home / 7,111.53-10,667.30-1,917.27

Finding the Fourth Proportional to 7,111.53, 10,667.30 and 1,917.27

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Solution

The fourth proportional to 7,111.53, 10,667.30 and 1,917.27 is: 2,875.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.53 : 10,667.30 = 1,917.27 : x
  2. Step 2: Convert to fraction form
    7,111.53/10,667.30 = 1,917.27/x
  3. Step 3: Cross multiply
    7,111.53x = 10,667.30 × 1,917.27
  4. Step 4: Simplify right side
    7,111.53x = 20,452,084.68
  5. Step 5: Solve for x
    x = 20,452,084.68/7,111.53
  6. Step 6: Final answer
    x = 2,875.91

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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.