Home / 12,376.63-17,079.87-6,999.36

Finding the Fourth Proportional to 12,376.63, 17,079.87 and 6,999.36

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Solution

The fourth proportional to 12,376.63, 17,079.87 and 6,999.36 is: 9,659.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.63 : 17,079.87 = 6,999.36 : x
  2. Step 2: Convert to fraction form
    12,376.63/17,079.87 = 6,999.36/x
  3. Step 3: Cross multiply
    12,376.63x = 17,079.87 × 6,999.36
  4. Step 4: Simplify right side
    12,376.63x = 119,548,158.88
  5. Step 5: Solve for x
    x = 119,548,158.88/12,376.63
  6. Step 6: Final answer
    x = 9,659.19

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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.