Home / 12,699.90-19,056.33-6,131.70

Finding the Fourth Proportional to 12,699.90, 19,056.33 and 6,131.70

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Solution

The fourth proportional to 12,699.90, 19,056.33 and 6,131.70 is: 9,200.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.90 : 19,056.33 = 6,131.70 : x
  2. Step 2: Convert to fraction form
    12,699.90/19,056.33 = 6,131.70/x
  3. Step 3: Cross multiply
    12,699.90x = 19,056.33 × 6,131.70
  4. Step 4: Simplify right side
    12,699.90x = 116,847,698.66
  5. Step 5: Solve for x
    x = 116,847,698.66/12,699.90
  6. Step 6: Final answer
    x = 9,200.68

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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.