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Finding the Fourth Proportional to 12,355.68, 18,527.76 and 7,163.04

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Solution

The fourth proportional to 12,355.68, 18,527.76 and 7,163.04 is: 10,741.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.68 : 18,527.76 = 7,163.04 : x
  2. Step 2: Convert to fraction form
    12,355.68/18,527.76 = 7,163.04/x
  3. Step 3: Cross multiply
    12,355.68x = 18,527.76 × 7,163.04
  4. Step 4: Simplify right side
    12,355.68x = 132,715,085.99
  5. Step 5: Solve for x
    x = 132,715,085.99/12,355.68
  6. Step 6: Final answer
    x = 10,741.22

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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.