Home / 11,914.40-16,432.80-7,193.72

Finding the Fourth Proportional to 11,914.40, 16,432.80 and 7,193.72

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Solution

The fourth proportional to 11,914.40, 16,432.80 and 7,193.72 is: 9,921.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,914.40 : 16,432.80 = 7,193.72 : x
  2. Step 2: Convert to fraction form
    11,914.40/16,432.80 = 7,193.72/x
  3. Step 3: Cross multiply
    11,914.40x = 16,432.80 × 7,193.72
  4. Step 4: Simplify right side
    11,914.40x = 118,212,962.02
  5. Step 5: Solve for x
    x = 118,212,962.02/11,914.40
  6. Step 6: Final answer
    x = 9,921.86

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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.