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Finding the Fourth Proportional to 12,695.64, 19,005.03 and 11,525.64

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Solution

The fourth proportional to 12,695.64, 19,005.03 and 11,525.64 is: 17,253.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,695.64 : 19,005.03 = 11,525.64 : x
  2. Step 2: Convert to fraction form
    12,695.64/19,005.03 = 11,525.64/x
  3. Step 3: Cross multiply
    12,695.64x = 19,005.03 × 11,525.64
  4. Step 4: Simplify right side
    12,695.64x = 219,045,133.97
  5. Step 5: Solve for x
    x = 219,045,133.97/12,695.64
  6. Step 6: Final answer
    x = 17,253.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.