Home / 12,012.92-18,000.57-9,047.94

Finding the Fourth Proportional to 12,012.92, 18,000.57 and 9,047.94

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Solution

The fourth proportional to 12,012.92, 18,000.57 and 9,047.94 is: 13,557.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.92 : 18,000.57 = 9,047.94 : x
  2. Step 2: Convert to fraction form
    12,012.92/18,000.57 = 9,047.94/x
  3. Step 3: Cross multiply
    12,012.92x = 18,000.57 × 9,047.94
  4. Step 4: Simplify right side
    12,012.92x = 162,868,077.33
  5. Step 5: Solve for x
    x = 162,868,077.33/12,012.92
  6. Step 6: Final answer
    x = 13,557.75

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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.