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Finding the Fourth Proportional to 8,520.07, 12,780.10 and 2,364.07

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Solution

The fourth proportional to 8,520.07, 12,780.10 and 2,364.07 is: 3,546.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.07 : 12,780.10 = 2,364.07 : x
  2. Step 2: Convert to fraction form
    8,520.07/12,780.10 = 2,364.07/x
  3. Step 3: Cross multiply
    8,520.07x = 12,780.10 × 2,364.07
  4. Step 4: Simplify right side
    8,520.07x = 30,212,987.11
  5. Step 5: Solve for x
    x = 30,212,987.11/8,520.07
  6. Step 6: Final answer
    x = 3,546.10

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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.