Home / 11,911.39-16,437.69-6,607

Finding the Fourth Proportional to 11,911.39, 16,437.69 and 6,607

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Solution

The fourth proportional to 11,911.39, 16,437.69 and 6,607 is: 9,117.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.39 : 16,437.69 = 6,607 : x
  2. Step 2: Convert to fraction form
    11,911.39/16,437.69 = 6,607/x
  3. Step 3: Cross multiply
    11,911.39x = 16,437.69 × 6,607
  4. Step 4: Simplify right side
    11,911.39x = 108,603,817.83
  5. Step 5: Solve for x
    x = 108,603,817.83/11,911.39
  6. Step 6: Final answer
    x = 9,117.64

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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.