Home / 11,885.16-16,401.78-6,580.34

Finding the Fourth Proportional to 11,885.16, 16,401.78 and 6,580.34

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Solution

The fourth proportional to 11,885.16, 16,401.78 and 6,580.34 is: 9,081.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885.16 : 16,401.78 = 6,580.34 : x
  2. Step 2: Convert to fraction form
    11,885.16/16,401.78 = 6,580.34/x
  3. Step 3: Cross multiply
    11,885.16x = 16,401.78 × 6,580.34
  4. Step 4: Simplify right side
    11,885.16x = 107,929,289.01
  5. Step 5: Solve for x
    x = 107,929,289.01/11,885.16
  6. Step 6: Final answer
    x = 9,081.01

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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.