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Finding the Fourth Proportional to 12,995.04, 17,935.93 and 8,211.94

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Solution

The fourth proportional to 12,995.04, 17,935.93 and 8,211.94 is: 11,334.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995.04 : 17,935.93 = 8,211.94 : x
  2. Step 2: Convert to fraction form
    12,995.04/17,935.93 = 8,211.94/x
  3. Step 3: Cross multiply
    12,995.04x = 17,935.93 × 8,211.94
  4. Step 4: Simplify right side
    12,995.04x = 147,288,781.00
  5. Step 5: Solve for x
    x = 147,288,781.00/12,995.04
  6. Step 6: Final answer
    x = 11,334.23

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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.