Home / 11,887.46-17,829.77-3,123.06

Finding the Fourth Proportional to 11,887.46, 17,829.77 and 3,123.06

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Solution

The fourth proportional to 11,887.46, 17,829.77 and 3,123.06 is: 4,684.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,887.46 : 17,829.77 = 3,123.06 : x
  2. Step 2: Convert to fraction form
    11,887.46/17,829.77 = 3,123.06/x
  3. Step 3: Cross multiply
    11,887.46x = 17,829.77 × 3,123.06
  4. Step 4: Simplify right side
    11,887.46x = 55,683,376.59
  5. Step 5: Solve for x
    x = 55,683,376.59/11,887.46
  6. Step 6: Final answer
    x = 4,684.21

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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.