Home / 19,551.78-29,262.06-12,130.56

Finding the Fourth Proportional to 19,551.78, 29,262.06 and 12,130.56

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Solution

The fourth proportional to 19,551.78, 29,262.06 and 12,130.56 is: 18,155.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,551.78 : 29,262.06 = 12,130.56 : x
  2. Step 2: Convert to fraction form
    19,551.78/29,262.06 = 12,130.56/x
  3. Step 3: Cross multiply
    19,551.78x = 29,262.06 × 12,130.56
  4. Step 4: Simplify right side
    19,551.78x = 354,965,174.55
  5. Step 5: Solve for x
    x = 354,965,174.55/19,551.78
  6. Step 6: Final answer
    x = 18,155.13

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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.