Home / 7,513.16-11,271.56-3,128.22

Finding the Fourth Proportional to 7,513.16, 11,271.56 and 3,128.22

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Solution

The fourth proportional to 7,513.16, 11,271.56 and 3,128.22 is: 4,693.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,513.16 : 11,271.56 = 3,128.22 : x
  2. Step 2: Convert to fraction form
    7,513.16/11,271.56 = 3,128.22/x
  3. Step 3: Cross multiply
    7,513.16x = 11,271.56 × 3,128.22
  4. Step 4: Simplify right side
    7,513.16x = 35,259,903.78
  5. Step 5: Solve for x
    x = 35,259,903.78/7,513.16
  6. Step 6: Final answer
    x = 4,693.09

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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.