Home / 12,376.79-17,079.73-6,999.15

Finding the Fourth Proportional to 12,376.79, 17,079.73 and 6,999.15

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Solution

The fourth proportional to 12,376.79, 17,079.73 and 6,999.15 is: 9,658.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.79 : 17,079.73 = 6,999.15 : x
  2. Step 2: Convert to fraction form
    12,376.79/17,079.73 = 6,999.15/x
  3. Step 3: Cross multiply
    12,376.79x = 17,079.73 × 6,999.15
  4. Step 4: Simplify right side
    12,376.79x = 119,543,592.23
  5. Step 5: Solve for x
    x = 119,543,592.23/12,376.79
  6. Step 6: Final answer
    x = 9,658.69

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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.