Home / 12,154.84-18,224.96-4,750.47

Finding the Fourth Proportional to 12,154.84, 18,224.96 and 4,750.47

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Solution

The fourth proportional to 12,154.84, 18,224.96 and 4,750.47 is: 7,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154.84 : 18,224.96 = 4,750.47 : x
  2. Step 2: Convert to fraction form
    12,154.84/18,224.96 = 4,750.47/x
  3. Step 3: Cross multiply
    12,154.84x = 18,224.96 × 4,750.47
  4. Step 4: Simplify right side
    12,154.84x = 86,577,101.98
  5. Step 5: Solve for x
    x = 86,577,101.98/12,154.84
  6. Step 6: Final answer
    x = 7,122.85

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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.