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Finding the Fourth Proportional to 19,347, 26,704.56 and 12,633.66

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Solution

The fourth proportional to 19,347, 26,704.56 and 12,633.66 is: 17,438.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,347 : 26,704.56 = 12,633.66 : x
  2. Step 2: Convert to fraction form
    19,347/26,704.56 = 12,633.66/x
  3. Step 3: Cross multiply
    19,347x = 26,704.56 × 12,633.66
  4. Step 4: Simplify right side
    19,347x = 337,376,331.49
  5. Step 5: Solve for x
    x = 337,376,331.49/19,347
  6. Step 6: Final answer
    x = 17,438.17

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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.