Home / 11,216.80-16,825.20-5,370.40

Finding the Fourth Proportional to 11,216.80, 16,825.20 and 5,370.40

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Solution

The fourth proportional to 11,216.80, 16,825.20 and 5,370.40 is: 8,055.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.80 : 16,825.20 = 5,370.40 : x
  2. Step 2: Convert to fraction form
    11,216.80/16,825.20 = 5,370.40/x
  3. Step 3: Cross multiply
    11,216.80x = 16,825.20 × 5,370.40
  4. Step 4: Simplify right side
    11,216.80x = 90,358,054.08
  5. Step 5: Solve for x
    x = 90,358,054.08/11,216.80
  6. Step 6: Final answer
    x = 8,055.60

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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.