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Finding the Fourth Proportional to 12,572, 18,858 and 4,364

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Solution

The fourth proportional to 12,572, 18,858 and 4,364 is: 6,546

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572 : 18,858 = 4,364 : x
  2. Step 2: Convert to fraction form
    12,572/18,858 = 4,364/x
  3. Step 3: Cross multiply
    12,572x = 18,858 × 4,364
  4. Step 4: Simplify right side
    12,572x = 82,296,312
  5. Step 5: Solve for x
    x = 82,296,312/12,572
  6. Step 6: Final answer
    x = 6,546

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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.