Home / 8,271.84-12,408.96-3,007.20

Finding the Fourth Proportional to 8,271.84, 12,408.96 and 3,007.20

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Solution

The fourth proportional to 8,271.84, 12,408.96 and 3,007.20 is: 4,511.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.84 : 12,408.96 = 3,007.20 : x
  2. Step 2: Convert to fraction form
    8,271.84/12,408.96 = 3,007.20/x
  3. Step 3: Cross multiply
    8,271.84x = 12,408.96 × 3,007.20
  4. Step 4: Simplify right side
    8,271.84x = 37,316,224.51
  5. Step 5: Solve for x
    x = 37,316,224.51/8,271.84
  6. Step 6: Final answer
    x = 4,511.24

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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.