Home / 12,304.04-16,979.63-6,999.21

Finding the Fourth Proportional to 12,304.04, 16,979.63 and 6,999.21

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Solution

The fourth proportional to 12,304.04, 16,979.63 and 6,999.21 is: 9,658.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,304.04 : 16,979.63 = 6,999.21 : x
  2. Step 2: Convert to fraction form
    12,304.04/16,979.63 = 6,999.21/x
  3. Step 3: Cross multiply
    12,304.04x = 16,979.63 × 6,999.21
  4. Step 4: Simplify right side
    12,304.04x = 118,843,961.10
  5. Step 5: Solve for x
    x = 118,843,961.10/12,304.04
  6. Step 6: Final answer
    x = 9,658.94

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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.