Home / 12,270.51-18,392.63-4,864.71

Finding the Fourth Proportional to 12,270.51, 18,392.63 and 4,864.71

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Solution

The fourth proportional to 12,270.51, 18,392.63 and 4,864.71 is: 7,291.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.51 : 18,392.63 = 4,864.71 : x
  2. Step 2: Convert to fraction form
    12,270.51/18,392.63 = 4,864.71/x
  3. Step 3: Cross multiply
    12,270.51x = 18,392.63 × 4,864.71
  4. Step 4: Simplify right side
    12,270.51x = 89,474,786.76
  5. Step 5: Solve for x
    x = 89,474,786.76/12,270.51
  6. Step 6: Final answer
    x = 7,291.86

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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.