Home / 11,270.28-16,905.42-8,801.40

Finding the Fourth Proportional to 11,270.28, 16,905.42 and 8,801.40

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Solution

The fourth proportional to 11,270.28, 16,905.42 and 8,801.40 is: 13,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,270.28 : 16,905.42 = 8,801.40 : x
  2. Step 2: Convert to fraction form
    11,270.28/16,905.42 = 8,801.40/x
  3. Step 3: Cross multiply
    11,270.28x = 16,905.42 × 8,801.40
  4. Step 4: Simplify right side
    11,270.28x = 148,791,363.59
  5. Step 5: Solve for x
    x = 148,791,363.59/11,270.28
  6. Step 6: Final answer
    x = 13,202.10

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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.