Home / 15,002.10-20,703.78-8,630.73

Finding the Fourth Proportional to 15,002.10, 20,703.78 and 8,630.73

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Solution

The fourth proportional to 15,002.10, 20,703.78 and 8,630.73 is: 11,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.10 : 20,703.78 = 8,630.73 : x
  2. Step 2: Convert to fraction form
    15,002.10/20,703.78 = 8,630.73/x
  3. Step 3: Cross multiply
    15,002.10x = 20,703.78 × 8,630.73
  4. Step 4: Simplify right side
    15,002.10x = 178,688,735.16
  5. Step 5: Solve for x
    x = 178,688,735.16/15,002.10
  6. Step 6: Final answer
    x = 11,910.91

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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.