Home / 11,988.54-16,555.59-11,334.06

Finding the Fourth Proportional to 11,988.54, 16,555.59 and 11,334.06

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Solution

The fourth proportional to 11,988.54, 16,555.59 and 11,334.06 is: 15,651.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.54 : 16,555.59 = 11,334.06 : x
  2. Step 2: Convert to fraction form
    11,988.54/16,555.59 = 11,334.06/x
  3. Step 3: Cross multiply
    11,988.54x = 16,555.59 × 11,334.06
  4. Step 4: Simplify right side
    11,988.54x = 187,642,050.40
  5. Step 5: Solve for x
    x = 187,642,050.40/11,988.54
  6. Step 6: Final answer
    x = 15,651.78

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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.