Home / 12,187.30-18,329.55-10,923.70

Finding the Fourth Proportional to 12,187.30, 18,329.55 and 10,923.70

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Solution

The fourth proportional to 12,187.30, 18,329.55 and 10,923.70 is: 16,429.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.30 : 18,329.55 = 10,923.70 : x
  2. Step 2: Convert to fraction form
    12,187.30/18,329.55 = 10,923.70/x
  3. Step 3: Cross multiply
    12,187.30x = 18,329.55 × 10,923.70
  4. Step 4: Simplify right side
    12,187.30x = 200,226,505.34
  5. Step 5: Solve for x
    x = 200,226,505.34/12,187.30
  6. Step 6: Final answer
    x = 16,429.11

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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.