Home / 12,154.30-18,224.16-4,749.94

Finding the Fourth Proportional to 12,154.30, 18,224.16 and 4,749.94

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Solution

The fourth proportional to 12,154.30, 18,224.16 and 4,749.94 is: 7,122.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154.30 : 18,224.16 = 4,749.94 : x
  2. Step 2: Convert to fraction form
    12,154.30/18,224.16 = 4,749.94/x
  3. Step 3: Cross multiply
    12,154.30x = 18,224.16 × 4,749.94
  4. Step 4: Simplify right side
    12,154.30x = 86,563,569.01
  5. Step 5: Solve for x
    x = 86,563,569.01/12,154.30
  6. Step 6: Final answer
    x = 7,122.05

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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.