Home / 11,210.20-16,815.30-7,293.40

Finding the Fourth Proportional to 11,210.20, 16,815.30 and 7,293.40

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Solution

The fourth proportional to 11,210.20, 16,815.30 and 7,293.40 is: 10,940.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.20 : 16,815.30 = 7,293.40 : x
  2. Step 2: Convert to fraction form
    11,210.20/16,815.30 = 7,293.40/x
  3. Step 3: Cross multiply
    11,210.20x = 16,815.30 × 7,293.40
  4. Step 4: Simplify right side
    11,210.20x = 122,640,709.02
  5. Step 5: Solve for x
    x = 122,640,709.02/11,210.20
  6. Step 6: Final answer
    x = 10,940.10

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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.