Home / 12,543.27-18,809.01-4,640.34

Finding the Fourth Proportional to 12,543.27, 18,809.01 and 4,640.34

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Solution

The fourth proportional to 12,543.27, 18,809.01 and 4,640.34 is: 6,958.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.27 : 18,809.01 = 4,640.34 : x
  2. Step 2: Convert to fraction form
    12,543.27/18,809.01 = 4,640.34/x
  3. Step 3: Cross multiply
    12,543.27x = 18,809.01 × 4,640.34
  4. Step 4: Simplify right side
    12,543.27x = 87,280,201.46
  5. Step 5: Solve for x
    x = 87,280,201.46/12,543.27
  6. Step 6: Final answer
    x = 6,958.33

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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.