Home / 11,911.65-16,438.51-7,195.02

Finding the Fourth Proportional to 11,911.65, 16,438.51 and 7,195.02

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Solution

The fourth proportional to 11,911.65, 16,438.51 and 7,195.02 is: 9,929.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.65 : 16,438.51 = 7,195.02 : x
  2. Step 2: Convert to fraction form
    11,911.65/16,438.51 = 7,195.02/x
  3. Step 3: Cross multiply
    11,911.65x = 16,438.51 × 7,195.02
  4. Step 4: Simplify right side
    11,911.65x = 118,275,408.22
  5. Step 5: Solve for x
    x = 118,275,408.22/11,911.65
  6. Step 6: Final answer
    x = 9,929.39

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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.