Home / 11,243.40-16,854.30-8,743.20

Finding the Fourth Proportional to 11,243.40, 16,854.30 and 8,743.20

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Solution

The fourth proportional to 11,243.40, 16,854.30 and 8,743.20 is: 13,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.40 : 16,854.30 = 8,743.20 : x
  2. Step 2: Convert to fraction form
    11,243.40/16,854.30 = 8,743.20/x
  3. Step 3: Cross multiply
    11,243.40x = 16,854.30 × 8,743.20
  4. Step 4: Simplify right side
    11,243.40x = 147,360,515.76
  5. Step 5: Solve for x
    x = 147,360,515.76/11,243.40
  6. Step 6: Final answer
    x = 13,106.40

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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.