Home / 8,284.68-12,428.08-3,018.87

Finding the Fourth Proportional to 8,284.68, 12,428.08 and 3,018.87

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Solution

The fourth proportional to 8,284.68, 12,428.08 and 3,018.87 is: 4,528.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,284.68 : 12,428.08 = 3,018.87 : x
  2. Step 2: Convert to fraction form
    8,284.68/12,428.08 = 3,018.87/x
  3. Step 3: Cross multiply
    8,284.68x = 12,428.08 × 3,018.87
  4. Step 4: Simplify right side
    8,284.68x = 37,518,757.87
  5. Step 5: Solve for x
    x = 37,518,757.87/8,284.68
  6. Step 6: Final answer
    x = 4,528.69

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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.