Home / 12,321.41-16,999.31-7,014.89

Finding the Fourth Proportional to 12,321.41, 16,999.31 and 7,014.89

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Solution

The fourth proportional to 12,321.41, 16,999.31 and 7,014.89 is: 9,678.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.41 : 16,999.31 = 7,014.89 : x
  2. Step 2: Convert to fraction form
    12,321.41/16,999.31 = 7,014.89/x
  3. Step 3: Cross multiply
    12,321.41x = 16,999.31 × 7,014.89
  4. Step 4: Simplify right side
    12,321.41x = 119,248,169.65
  5. Step 5: Solve for x
    x = 119,248,169.65/12,321.41
  6. Step 6: Final answer
    x = 9,678.13

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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.