Home / 11,855.84-16,360.87-6,551.15

Finding the Fourth Proportional to 11,855.84, 16,360.87 and 6,551.15

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Solution

The fourth proportional to 11,855.84, 16,360.87 and 6,551.15 is: 9,040.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.84 : 16,360.87 = 6,551.15 : x
  2. Step 2: Convert to fraction form
    11,855.84/16,360.87 = 6,551.15/x
  3. Step 3: Cross multiply
    11,855.84x = 16,360.87 × 6,551.15
  4. Step 4: Simplify right side
    11,855.84x = 107,182,480.74
  5. Step 5: Solve for x
    x = 107,182,480.74/11,855.84
  6. Step 6: Final answer
    x = 9,040.48

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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.