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Finding the Fourth Proportional to 9,210.80, 13,812.06 and 2,635.50

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Solution

The fourth proportional to 9,210.80, 13,812.06 and 2,635.50 is: 3,952.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,210.80 : 13,812.06 = 2,635.50 : x
  2. Step 2: Convert to fraction form
    9,210.80/13,812.06 = 2,635.50/x
  3. Step 3: Cross multiply
    9,210.80x = 13,812.06 × 2,635.50
  4. Step 4: Simplify right side
    9,210.80x = 36,401,684.13
  5. Step 5: Solve for x
    x = 36,401,684.13/9,210.80
  6. Step 6: Final answer
    x = 3,952.07

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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.