Home / 12,345.62-18,513.45-4,552.70

Finding the Fourth Proportional to 12,345.62, 18,513.45 and 4,552.70

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Solution

The fourth proportional to 12,345.62, 18,513.45 and 4,552.70 is: 6,827.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.62 : 18,513.45 = 4,552.70 : x
  2. Step 2: Convert to fraction form
    12,345.62/18,513.45 = 4,552.70/x
  3. Step 3: Cross multiply
    12,345.62x = 18,513.45 × 4,552.70
  4. Step 4: Simplify right side
    12,345.62x = 84,286,183.82
  5. Step 5: Solve for x
    x = 84,286,183.82/12,345.62
  6. Step 6: Final answer
    x = 6,827.21

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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.