Home / 11,078.20-16,617.30-7,368.40

Finding the Fourth Proportional to 11,078.20, 16,617.30 and 7,368.40

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Solution

The fourth proportional to 11,078.20, 16,617.30 and 7,368.40 is: 11,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.20 : 16,617.30 = 7,368.40 : x
  2. Step 2: Convert to fraction form
    11,078.20/16,617.30 = 7,368.40/x
  3. Step 3: Cross multiply
    11,078.20x = 16,617.30 × 7,368.40
  4. Step 4: Simplify right side
    11,078.20x = 122,442,913.32
  5. Step 5: Solve for x
    x = 122,442,913.32/11,078.20
  6. Step 6: Final answer
    x = 11,052.60

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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.