Home / 12,276.41-18,417.56-3,957.21

Finding the Fourth Proportional to 12,276.41, 18,417.56 and 3,957.21

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Solution

The fourth proportional to 12,276.41, 18,417.56 and 3,957.21 is: 5,936.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.41 : 18,417.56 = 3,957.21 : x
  2. Step 2: Convert to fraction form
    12,276.41/18,417.56 = 3,957.21/x
  3. Step 3: Cross multiply
    12,276.41x = 18,417.56 × 3,957.21
  4. Step 4: Simplify right side
    12,276.41x = 72,882,152.61
  5. Step 5: Solve for x
    x = 72,882,152.61/12,276.41
  6. Step 6: Final answer
    x = 5,936.76

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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.