Home / 12,631.68-18,966.96-11,257.92

Finding the Fourth Proportional to 12,631.68, 18,966.96 and 11,257.92

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Solution

The fourth proportional to 12,631.68, 18,966.96 and 11,257.92 is: 16,904.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.68 : 18,966.96 = 11,257.92 : x
  2. Step 2: Convert to fraction form
    12,631.68/18,966.96 = 11,257.92/x
  3. Step 3: Cross multiply
    12,631.68x = 18,966.96 × 11,257.92
  4. Step 4: Simplify right side
    12,631.68x = 213,528,518.32
  5. Step 5: Solve for x
    x = 213,528,518.32/12,631.68
  6. Step 6: Final answer
    x = 16,904.21

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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.