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Finding the Fourth Proportional to 12,574.68, 18,860.00 and 4,254.54

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Solution

The fourth proportional to 12,574.68, 18,860.00 and 4,254.54 is: 6,381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574.68 : 18,860.00 = 4,254.54 : x
  2. Step 2: Convert to fraction form
    12,574.68/18,860.00 = 4,254.54/x
  3. Step 3: Cross multiply
    12,574.68x = 18,860.00 × 4,254.54
  4. Step 4: Simplify right side
    12,574.68x = 80,240,603.13
  5. Step 5: Solve for x
    x = 80,240,603.13/12,574.68
  6. Step 6: Final answer
    x = 6,381.12

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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.