Home / 11,402.94-17,109.81-7,898.34

Finding the Fourth Proportional to 11,402.94, 17,109.81 and 7,898.34

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Solution

The fourth proportional to 11,402.94, 17,109.81 and 7,898.34 is: 11,851.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,402.94 : 17,109.81 = 7,898.34 : x
  2. Step 2: Convert to fraction form
    11,402.94/17,109.81 = 7,898.34/x
  3. Step 3: Cross multiply
    11,402.94x = 17,109.81 × 7,898.34
  4. Step 4: Simplify right side
    11,402.94x = 135,139,096.72
  5. Step 5: Solve for x
    x = 135,139,096.72/11,402.94
  6. Step 6: Final answer
    x = 11,851.25

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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.