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Finding the Fourth Proportional to 18,324, 25,277.04 and 13,026.72

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Solution

The fourth proportional to 18,324, 25,277.04 and 13,026.72 is: 17,969.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324 : 25,277.04 = 13,026.72 : x
  2. Step 2: Convert to fraction form
    18,324/25,277.04 = 13,026.72/x
  3. Step 3: Cross multiply
    18,324x = 25,277.04 × 13,026.72
  4. Step 4: Simplify right side
    18,324x = 329,276,922.51
  5. Step 5: Solve for x
    x = 329,276,922.51/18,324
  6. Step 6: Final answer
    x = 17,969.71

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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.