Home / 12,276.96-18,417.12-3,954.21

Finding the Fourth Proportional to 12,276.96, 18,417.12 and 3,954.21

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Solution

The fourth proportional to 12,276.96, 18,417.12 and 3,954.21 is: 5,931.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.96 : 18,417.12 = 3,954.21 : x
  2. Step 2: Convert to fraction form
    12,276.96/18,417.12 = 3,954.21/x
  3. Step 3: Cross multiply
    12,276.96x = 18,417.12 × 3,954.21
  4. Step 4: Simplify right side
    12,276.96x = 72,825,160.08
  5. Step 5: Solve for x
    x = 72,825,160.08/12,276.96
  6. Step 6: Final answer
    x = 5,931.86

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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.