Home / 8,223.31-12,333.16-2,378.65

Finding the Fourth Proportional to 8,223.31, 12,333.16 and 2,378.65

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Solution

The fourth proportional to 8,223.31, 12,333.16 and 2,378.65 is: 3,567.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,223.31 : 12,333.16 = 2,378.65 : x
  2. Step 2: Convert to fraction form
    8,223.31/12,333.16 = 2,378.65/x
  3. Step 3: Cross multiply
    8,223.31x = 12,333.16 × 2,378.65
  4. Step 4: Simplify right side
    8,223.31x = 29,336,271.03
  5. Step 5: Solve for x
    x = 29,336,271.03/8,223.31
  6. Step 6: Final answer
    x = 3,567.45

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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.