Home / 12,376.54-17,079.39-6,998.90

Finding the Fourth Proportional to 12,376.54, 17,079.39 and 6,998.90

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Solution

The fourth proportional to 12,376.54, 17,079.39 and 6,998.90 is: 9,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.54 : 17,079.39 = 6,998.90 : x
  2. Step 2: Convert to fraction form
    12,376.54/17,079.39 = 6,998.90/x
  3. Step 3: Cross multiply
    12,376.54x = 17,079.39 × 6,998.90
  4. Step 4: Simplify right side
    12,376.54x = 119,536,985.37
  5. Step 5: Solve for x
    x = 119,536,985.37/12,376.54
  6. Step 6: Final answer
    x = 9,658.35

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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.