Home / 11,066.20-15,290.80-8,846.40

Finding the Fourth Proportional to 11,066.20, 15,290.80 and 8,846.40

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Solution

The fourth proportional to 11,066.20, 15,290.80 and 8,846.40 is: 12,223.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,066.20 : 15,290.80 = 8,846.40 : x
  2. Step 2: Convert to fraction form
    11,066.20/15,290.80 = 8,846.40/x
  3. Step 3: Cross multiply
    11,066.20x = 15,290.80 × 8,846.40
  4. Step 4: Simplify right side
    11,066.20x = 135,268,533.12
  5. Step 5: Solve for x
    x = 135,268,533.12/11,066.20
  6. Step 6: Final answer
    x = 12,223.58

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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.