Home / 12,568.80-18,848.76-3,681.68

Finding the Fourth Proportional to 12,568.80, 18,848.76 and 3,681.68

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Solution

The fourth proportional to 12,568.80, 18,848.76 and 3,681.68 is: 5,521.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.80 : 18,848.76 = 3,681.68 : x
  2. Step 2: Convert to fraction form
    12,568.80/18,848.76 = 3,681.68/x
  3. Step 3: Cross multiply
    12,568.80x = 18,848.76 × 3,681.68
  4. Step 4: Simplify right side
    12,568.80x = 69,395,102.72
  5. Step 5: Solve for x
    x = 69,395,102.72/12,568.80
  6. Step 6: Final answer
    x = 5,521.22

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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.