Home / 11,829.31-16,323.87-7,112.68

Finding the Fourth Proportional to 11,829.31, 16,323.87 and 7,112.68

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Solution

The fourth proportional to 11,829.31, 16,323.87 and 7,112.68 is: 9,815.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,829.31 : 16,323.87 = 7,112.68 : x
  2. Step 2: Convert to fraction form
    11,829.31/16,323.87 = 7,112.68/x
  3. Step 3: Cross multiply
    11,829.31x = 16,323.87 × 7,112.68
  4. Step 4: Simplify right side
    11,829.31x = 116,106,463.67
  5. Step 5: Solve for x
    x = 116,106,463.67/11,829.31
  6. Step 6: Final answer
    x = 9,815.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.