Home / 11,942.40-17,886.28-5,706.80

Finding the Fourth Proportional to 11,942.40, 17,886.28 and 5,706.80

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Solution

The fourth proportional to 11,942.40, 17,886.28 and 5,706.80 is: 8,547.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.40 : 17,886.28 = 5,706.80 : x
  2. Step 2: Convert to fraction form
    11,942.40/17,886.28 = 5,706.80/x
  3. Step 3: Cross multiply
    11,942.40x = 17,886.28 × 5,706.80
  4. Step 4: Simplify right side
    11,942.40x = 102,073,333.27
  5. Step 5: Solve for x
    x = 102,073,333.27/11,942.40
  6. Step 6: Final answer
    x = 8,547.14

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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.