Home / 8,435.85-12,634.08-6,668.98

Finding the Fourth Proportional to 8,435.85, 12,634.08 and 6,668.98

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Solution

The fourth proportional to 8,435.85, 12,634.08 and 6,668.98 is: 9,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.85 : 12,634.08 = 6,668.98 : x
  2. Step 2: Convert to fraction form
    8,435.85/12,634.08 = 6,668.98/x
  3. Step 3: Cross multiply
    8,435.85x = 12,634.08 × 6,668.98
  4. Step 4: Simplify right side
    8,435.85x = 84,256,426.84
  5. Step 5: Solve for x
    x = 84,256,426.84/8,435.85
  6. Step 6: Final answer
    x = 9,987.90

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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.