Home / 15,551.20-23,310.60-8,520.40

Finding the Fourth Proportional to 15,551.20, 23,310.60 and 8,520.40

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Solution

The fourth proportional to 15,551.20, 23,310.60 and 8,520.40 is: 12,771.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.20 : 23,310.60 = 8,520.40 : x
  2. Step 2: Convert to fraction form
    15,551.20/23,310.60 = 8,520.40/x
  3. Step 3: Cross multiply
    15,551.20x = 23,310.60 × 8,520.40
  4. Step 4: Simplify right side
    15,551.20x = 198,615,636.24
  5. Step 5: Solve for x
    x = 198,615,636.24/15,551.20
  6. Step 6: Final answer
    x = 12,771.72

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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.