Home / 11,911.19-16,437.53-6,606.09

Finding the Fourth Proportional to 11,911.19, 16,437.53 and 6,606.09

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Solution

The fourth proportional to 11,911.19, 16,437.53 and 6,606.09 is: 9,116.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.19 : 16,437.53 = 6,606.09 : x
  2. Step 2: Convert to fraction form
    11,911.19/16,437.53 = 6,606.09/x
  3. Step 3: Cross multiply
    11,911.19x = 16,437.53 × 6,606.09
  4. Step 4: Simplify right side
    11,911.19x = 108,587,819.07
  5. Step 5: Solve for x
    x = 108,587,819.07/11,911.19
  6. Step 6: Final answer
    x = 9,116.46

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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.