Home / 8,271.02-12,408.56-4,112.99

Finding the Fourth Proportional to 8,271.02, 12,408.56 and 4,112.99

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Solution

The fourth proportional to 8,271.02, 12,408.56 and 4,112.99 is: 6,170.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.02 : 12,408.56 = 4,112.99 : x
  2. Step 2: Convert to fraction form
    8,271.02/12,408.56 = 4,112.99/x
  3. Step 3: Cross multiply
    8,271.02x = 12,408.56 × 4,112.99
  4. Step 4: Simplify right side
    8,271.02x = 51,036,283.19
  5. Step 5: Solve for x
    x = 51,036,283.19/8,271.02
  6. Step 6: Final answer
    x = 6,170.49

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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.