Home / 11,347.20-16,972.80-10,185.60

Finding the Fourth Proportional to 11,347.20, 16,972.80 and 10,185.60

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Solution

The fourth proportional to 11,347.20, 16,972.80 and 10,185.60 is: 15,235.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,347.20 : 16,972.80 = 10,185.60 : x
  2. Step 2: Convert to fraction form
    11,347.20/16,972.80 = 10,185.60/x
  3. Step 3: Cross multiply
    11,347.20x = 16,972.80 × 10,185.60
  4. Step 4: Simplify right side
    11,347.20x = 172,878,151.68
  5. Step 5: Solve for x
    x = 172,878,151.68/11,347.20
  6. Step 6: Final answer
    x = 15,235.31

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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.