Home / 8,333.03-12,485.14-4,378.40

Finding the Fourth Proportional to 8,333.03, 12,485.14 and 4,378.40

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Solution

The fourth proportional to 8,333.03, 12,485.14 and 4,378.40 is: 6,560.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,333.03 : 12,485.14 = 4,378.40 : x
  2. Step 2: Convert to fraction form
    8,333.03/12,485.14 = 4,378.40/x
  3. Step 3: Cross multiply
    8,333.03x = 12,485.14 × 4,378.40
  4. Step 4: Simplify right side
    8,333.03x = 54,664,980.65
  5. Step 5: Solve for x
    x = 54,664,980.65/8,333.03
  6. Step 6: Final answer
    x = 6,560.04

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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.