Home / 11,911.74-16,438.32-6,607.08

Finding the Fourth Proportional to 11,911.74, 16,438.32 and 6,607.08

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Solution

The fourth proportional to 11,911.74, 16,438.32 and 6,607.08 is: 9,117.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.74 : 16,438.32 = 6,607.08 : x
  2. Step 2: Convert to fraction form
    11,911.74/16,438.32 = 6,607.08/x
  3. Step 3: Cross multiply
    11,911.74x = 16,438.32 × 6,607.08
  4. Step 4: Simplify right side
    11,911.74x = 108,609,295.31
  5. Step 5: Solve for x
    x = 108,609,295.31/11,911.74
  6. Step 6: Final answer
    x = 9,117.84

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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.