Home / 12,303.13-16,979.23-6,999.65

Finding the Fourth Proportional to 12,303.13, 16,979.23 and 6,999.65

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Solution

The fourth proportional to 12,303.13, 16,979.23 and 6,999.65 is: 9,660.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.13 : 16,979.23 = 6,999.65 : x
  2. Step 2: Convert to fraction form
    12,303.13/16,979.23 = 6,999.65/x
  3. Step 3: Cross multiply
    12,303.13x = 16,979.23 × 6,999.65
  4. Step 4: Simplify right side
    12,303.13x = 118,848,632.27
  5. Step 5: Solve for x
    x = 118,848,632.27/12,303.13
  6. Step 6: Final answer
    x = 9,660.04

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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.