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Finding the Fourth Proportional to 12,366, 18,554.40 and 4,572.72

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Solution

The fourth proportional to 12,366, 18,554.40 and 4,572.72 is: 6,861.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366 : 18,554.40 = 4,572.72 : x
  2. Step 2: Convert to fraction form
    12,366/18,554.40 = 4,572.72/x
  3. Step 3: Cross multiply
    12,366x = 18,554.40 × 4,572.72
  4. Step 4: Simplify right side
    12,366x = 84,844,075.97
  5. Step 5: Solve for x
    x = 84,844,075.97/12,366
  6. Step 6: Final answer
    x = 6,861.08

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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.