Home / 12,542.64-18,810.33-4,220.52

Finding the Fourth Proportional to 12,542.64, 18,810.33 and 4,220.52

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Solution

The fourth proportional to 12,542.64, 18,810.33 and 4,220.52 is: 6,329.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,542.64 : 18,810.33 = 4,220.52 : x
  2. Step 2: Convert to fraction form
    12,542.64/18,810.33 = 4,220.52/x
  3. Step 3: Cross multiply
    12,542.64x = 18,810.33 × 4,220.52
  4. Step 4: Simplify right side
    12,542.64x = 79,389,373.97
  5. Step 5: Solve for x
    x = 79,389,373.97/12,542.64
  6. Step 6: Final answer
    x = 6,329.56

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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.