Home / 11,402.90-15,731.53-6,622.03

Finding the Fourth Proportional to 11,402.90, 15,731.53 and 6,622.03

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Solution

The fourth proportional to 11,402.90, 15,731.53 and 6,622.03 is: 9,135.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,402.90 : 15,731.53 = 6,622.03 : x
  2. Step 2: Convert to fraction form
    11,402.90/15,731.53 = 6,622.03/x
  3. Step 3: Cross multiply
    11,402.90x = 15,731.53 × 6,622.03
  4. Step 4: Simplify right side
    11,402.90x = 104,174,551.84
  5. Step 5: Solve for x
    x = 104,174,551.84/11,402.90
  6. Step 6: Final answer
    x = 9,135.79

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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.