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Finding the Fourth Proportional to 12,230.62, 18,345.94 and 5,655.58

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Solution

The fourth proportional to 12,230.62, 18,345.94 and 5,655.58 is: 8,483.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.62 : 18,345.94 = 5,655.58 : x
  2. Step 2: Convert to fraction form
    12,230.62/18,345.94 = 5,655.58/x
  3. Step 3: Cross multiply
    12,230.62x = 18,345.94 × 5,655.58
  4. Step 4: Simplify right side
    12,230.62x = 103,756,931.35
  5. Step 5: Solve for x
    x = 103,756,931.35/12,230.62
  6. Step 6: Final answer
    x = 8,483.37

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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.