Home / 6,128.60-8,463.30-5,010.80

Finding the Fourth Proportional to 6,128.60, 8,463.30 and 5,010.80

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Solution

The fourth proportional to 6,128.60, 8,463.30 and 5,010.80 is: 6,919.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.60 : 8,463.30 = 5,010.80 : x
  2. Step 2: Convert to fraction form
    6,128.60/8,463.30 = 5,010.80/x
  3. Step 3: Cross multiply
    6,128.60x = 8,463.30 × 5,010.80
  4. Step 4: Simplify right side
    6,128.60x = 42,407,903.64
  5. Step 5: Solve for x
    x = 42,407,903.64/6,128.60
  6. Step 6: Final answer
    x = 6,919.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.