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Finding the Fourth Proportional to 13,056, 18,017.28 and 7,467.12

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Solution

The fourth proportional to 13,056, 18,017.28 and 7,467.12 is: 10,304.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056 : 18,017.28 = 7,467.12 : x
  2. Step 2: Convert to fraction form
    13,056/18,017.28 = 7,467.12/x
  3. Step 3: Cross multiply
    13,056x = 18,017.28 × 7,467.12
  4. Step 4: Simplify right side
    13,056x = 134,537,191.83
  5. Step 5: Solve for x
    x = 134,537,191.83/13,056
  6. Step 6: Final answer
    x = 10,304.63

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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.