Home / 11,955.60-16,475.40-11,809.80

Finding the Fourth Proportional to 11,955.60, 16,475.40 and 11,809.80

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Solution

The fourth proportional to 11,955.60, 16,475.40 and 11,809.80 is: 16,274.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.60 : 16,475.40 = 11,809.80 : x
  2. Step 2: Convert to fraction form
    11,955.60/16,475.40 = 11,809.80/x
  3. Step 3: Cross multiply
    11,955.60x = 16,475.40 × 11,809.80
  4. Step 4: Simplify right side
    11,955.60x = 194,571,178.92
  5. Step 5: Solve for x
    x = 194,571,178.92/11,955.60
  6. Step 6: Final answer
    x = 16,274.48

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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.