Home / 11,130.72-16,614.84-10,308.48

Finding the Fourth Proportional to 11,130.72, 16,614.84 and 10,308.48

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Solution

The fourth proportional to 11,130.72, 16,614.84 and 10,308.48 is: 15,387.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.72 : 16,614.84 = 10,308.48 : x
  2. Step 2: Convert to fraction form
    11,130.72/16,614.84 = 10,308.48/x
  3. Step 3: Cross multiply
    11,130.72x = 16,614.84 × 10,308.48
  4. Step 4: Simplify right side
    11,130.72x = 171,273,745.84
  5. Step 5: Solve for x
    x = 171,273,745.84/11,130.72
  6. Step 6: Final answer
    x = 15,387.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.