Home / 12,431.68-18,650.66-4,538.53

Finding the Fourth Proportional to 12,431.68, 18,650.66 and 4,538.53

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Solution

The fourth proportional to 12,431.68, 18,650.66 and 4,538.53 is: 6,808.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431.68 : 18,650.66 = 4,538.53 : x
  2. Step 2: Convert to fraction form
    12,431.68/18,650.66 = 4,538.53/x
  3. Step 3: Cross multiply
    12,431.68x = 18,650.66 × 4,538.53
  4. Step 4: Simplify right side
    12,431.68x = 84,646,580.55
  5. Step 5: Solve for x
    x = 84,646,580.55/12,431.68
  6. Step 6: Final answer
    x = 6,808.94

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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.