Home / 12,438.92-18,656.78-4,646.60

Finding the Fourth Proportional to 12,438.92, 18,656.78 and 4,646.60

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Solution

The fourth proportional to 12,438.92, 18,656.78 and 4,646.60 is: 6,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438.92 : 18,656.78 = 4,646.60 : x
  2. Step 2: Convert to fraction form
    12,438.92/18,656.78 = 4,646.60/x
  3. Step 3: Cross multiply
    12,438.92x = 18,656.78 × 4,646.60
  4. Step 4: Simplify right side
    12,438.92x = 86,690,593.95
  5. Step 5: Solve for x
    x = 86,690,593.95/12,438.92
  6. Step 6: Final answer
    x = 6,969.30

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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.