Home / 12,458.75-18,688.03-4,561.81

Finding the Fourth Proportional to 12,458.75, 18,688.03 and 4,561.81

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Solution

The fourth proportional to 12,458.75, 18,688.03 and 4,561.81 is: 6,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.75 : 18,688.03 = 4,561.81 : x
  2. Step 2: Convert to fraction form
    12,458.75/18,688.03 = 4,561.81/x
  3. Step 3: Cross multiply
    12,458.75x = 18,688.03 × 4,561.81
  4. Step 4: Simplify right side
    12,458.75x = 85,251,184.01
  5. Step 5: Solve for x
    x = 85,251,184.01/12,458.75
  6. Step 6: Final answer
    x = 6,842.68

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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.