Home / 15,004.96-20,706.05-8,630.54

Finding the Fourth Proportional to 15,004.96, 20,706.05 and 8,630.54

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Solution

The fourth proportional to 15,004.96, 20,706.05 and 8,630.54 is: 11,909.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004.96 : 20,706.05 = 8,630.54 : x
  2. Step 2: Convert to fraction form
    15,004.96/20,706.05 = 8,630.54/x
  3. Step 3: Cross multiply
    15,004.96x = 20,706.05 × 8,630.54
  4. Step 4: Simplify right side
    15,004.96x = 178,704,392.77
  5. Step 5: Solve for x
    x = 178,704,392.77/15,004.96
  6. Step 6: Final answer
    x = 11,909.69

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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.