Home / 12,501.23-18,753.39-4,187.22

Finding the Fourth Proportional to 12,501.23, 18,753.39 and 4,187.22

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Solution

The fourth proportional to 12,501.23, 18,753.39 and 4,187.22 is: 6,281.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.23 : 18,753.39 = 4,187.22 : x
  2. Step 2: Convert to fraction form
    12,501.23/18,753.39 = 4,187.22/x
  3. Step 3: Cross multiply
    12,501.23x = 18,753.39 × 4,187.22
  4. Step 4: Simplify right side
    12,501.23x = 78,524,569.68
  5. Step 5: Solve for x
    x = 78,524,569.68/12,501.23
  6. Step 6: Final answer
    x = 6,281.35

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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.