Home / 11,235.80-16,845.60-7,342.40

Finding the Fourth Proportional to 11,235.80, 16,845.60 and 7,342.40

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Solution

The fourth proportional to 11,235.80, 16,845.60 and 7,342.40 is: 11,008.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,235.80 : 16,845.60 = 7,342.40 : x
  2. Step 2: Convert to fraction form
    11,235.80/16,845.60 = 7,342.40/x
  3. Step 3: Cross multiply
    11,235.80x = 16,845.60 × 7,342.40
  4. Step 4: Simplify right side
    11,235.80x = 123,687,133.44
  5. Step 5: Solve for x
    x = 123,687,133.44/11,235.80
  6. Step 6: Final answer
    x = 11,008.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.