Home / 8,316.36-12,480.48-6,130.80

Finding the Fourth Proportional to 8,316.36, 12,480.48 and 6,130.80

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Solution

The fourth proportional to 8,316.36, 12,480.48 and 6,130.80 is: 9,200.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.36 : 12,480.48 = 6,130.80 : x
  2. Step 2: Convert to fraction form
    8,316.36/12,480.48 = 6,130.80/x
  3. Step 3: Cross multiply
    8,316.36x = 12,480.48 × 6,130.80
  4. Step 4: Simplify right side
    8,316.36x = 76,515,326.78
  5. Step 5: Solve for x
    x = 76,515,326.78/8,316.36
  6. Step 6: Final answer
    x = 9,200.58

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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.