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Finding the Fourth Proportional to 8,754.77, 13,124.80 and 3,820.65

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Solution

The fourth proportional to 8,754.77, 13,124.80 and 3,820.65 is: 5,727.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.77 : 13,124.80 = 3,820.65 : x
  2. Step 2: Convert to fraction form
    8,754.77/13,124.80 = 3,820.65/x
  3. Step 3: Cross multiply
    8,754.77x = 13,124.80 × 3,820.65
  4. Step 4: Simplify right side
    8,754.77x = 50,145,267.12
  5. Step 5: Solve for x
    x = 50,145,267.12/8,754.77
  6. Step 6: Final answer
    x = 5,727.77

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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.