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Finding the Fourth Proportional to 8,730.20, 12,253 and 8,730.20

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Solution

The fourth proportional to 8,730.20, 12,253 and 8,730.20 is: 12,253

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.20 : 12,253 = 8,730.20 : x
  2. Step 2: Convert to fraction form
    8,730.20/12,253 = 8,730.20/x
  3. Step 3: Cross multiply
    8,730.20x = 12,253 × 8,730.20
  4. Step 4: Simplify right side
    8,730.20x = 106,971,140.60
  5. Step 5: Solve for x
    x = 106,971,140.60/8,730.20
  6. Step 6: Final answer
    x = 12,253

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.