Home / 18,812.40-25,966.08-11,734.68

Finding the Fourth Proportional to 18,812.40, 25,966.08 and 11,734.68

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Solution

The fourth proportional to 18,812.40, 25,966.08 and 11,734.68 is: 16,196.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,812.40 : 25,966.08 = 11,734.68 : x
  2. Step 2: Convert to fraction form
    18,812.40/25,966.08 = 11,734.68/x
  3. Step 3: Cross multiply
    18,812.40x = 25,966.08 × 11,734.68
  4. Step 4: Simplify right side
    18,812.40x = 304,703,639.65
  5. Step 5: Solve for x
    x = 304,703,639.65/18,812.40
  6. Step 6: Final answer
    x = 16,196.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.