Home / 12,187.25-18,280.98-2,953.25

Finding the Fourth Proportional to 12,187.25, 18,280.98 and 2,953.25

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Solution

The fourth proportional to 12,187.25, 18,280.98 and 2,953.25 is: 4,429.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.25 : 18,280.98 = 2,953.25 : x
  2. Step 2: Convert to fraction form
    12,187.25/18,280.98 = 2,953.25/x
  3. Step 3: Cross multiply
    12,187.25x = 18,280.98 × 2,953.25
  4. Step 4: Simplify right side
    12,187.25x = 53,988,289.42
  5. Step 5: Solve for x
    x = 53,988,289.42/12,187.25
  6. Step 6: Final answer
    x = 4,429.90

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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.