Home / 11,614.90-16,029.12-7,138.84

Finding the Fourth Proportional to 11,614.90, 16,029.12 and 7,138.84

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Solution

The fourth proportional to 11,614.90, 16,029.12 and 7,138.84 is: 9,851.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,614.90 : 16,029.12 = 7,138.84 : x
  2. Step 2: Convert to fraction form
    11,614.90/16,029.12 = 7,138.84/x
  3. Step 3: Cross multiply
    11,614.90x = 16,029.12 × 7,138.84
  4. Step 4: Simplify right side
    11,614.90x = 114,429,323.02
  5. Step 5: Solve for x
    x = 114,429,323.02/11,614.90
  6. Step 6: Final answer
    x = 9,851.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.