Home / 8,320.95-12,477.78-2,476.40

Finding the Fourth Proportional to 8,320.95, 12,477.78 and 2,476.40

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Solution

The fourth proportional to 8,320.95, 12,477.78 and 2,476.40 is: 3,713.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.95 : 12,477.78 = 2,476.40 : x
  2. Step 2: Convert to fraction form
    8,320.95/12,477.78 = 2,476.40/x
  3. Step 3: Cross multiply
    8,320.95x = 12,477.78 × 2,476.40
  4. Step 4: Simplify right side
    8,320.95x = 30,899,912.00
  5. Step 5: Solve for x
    x = 30,899,912.00/8,320.95
  6. Step 6: Final answer
    x = 3,713.51

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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.