Home / 8,429.43-12,619.65-4,908.70

Finding the Fourth Proportional to 8,429.43, 12,619.65 and 4,908.70

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Solution

The fourth proportional to 8,429.43, 12,619.65 and 4,908.70 is: 7,348.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.43 : 12,619.65 = 4,908.70 : x
  2. Step 2: Convert to fraction form
    8,429.43/12,619.65 = 4,908.70/x
  3. Step 3: Cross multiply
    8,429.43x = 12,619.65 × 4,908.70
  4. Step 4: Simplify right side
    8,429.43x = 61,946,075.96
  5. Step 5: Solve for x
    x = 61,946,075.96/8,429.43
  6. Step 6: Final answer
    x = 7,348.79

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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.