Home / 11,885.87-16,401.36-6,580.49

Finding the Fourth Proportional to 11,885.87, 16,401.36 and 6,580.49

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Solution

The fourth proportional to 11,885.87, 16,401.36 and 6,580.49 is: 9,080.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885.87 : 16,401.36 = 6,580.49 : x
  2. Step 2: Convert to fraction form
    11,885.87/16,401.36 = 6,580.49/x
  3. Step 3: Cross multiply
    11,885.87x = 16,401.36 × 6,580.49
  4. Step 4: Simplify right side
    11,885.87x = 107,928,985.47
  5. Step 5: Solve for x
    x = 107,928,985.47/11,885.87
  6. Step 6: Final answer
    x = 9,080.44

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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.