Home / 6,768.68-10,128.40-5,587.70

Finding the Fourth Proportional to 6,768.68, 10,128.40 and 5,587.70

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Solution

The fourth proportional to 6,768.68, 10,128.40 and 5,587.70 is: 8,361.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,768.68 : 10,128.40 = 5,587.70 : x
  2. Step 2: Convert to fraction form
    6,768.68/10,128.40 = 5,587.70/x
  3. Step 3: Cross multiply
    6,768.68x = 10,128.40 × 5,587.70
  4. Step 4: Simplify right side
    6,768.68x = 56,594,460.68
  5. Step 5: Solve for x
    x = 56,594,460.68/6,768.68
  6. Step 6: Final answer
    x = 8,361.23

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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.