Home / 13,962.89-20,938.83-5,641.34

Finding the Fourth Proportional to 13,962.89, 20,938.83 and 5,641.34

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Solution

The fourth proportional to 13,962.89, 20,938.83 and 5,641.34 is: 8,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,962.89 : 20,938.83 = 5,641.34 : x
  2. Step 2: Convert to fraction form
    13,962.89/20,938.83 = 5,641.34/x
  3. Step 3: Cross multiply
    13,962.89x = 20,938.83 × 5,641.34
  4. Step 4: Simplify right side
    13,962.89x = 118,123,059.23
  5. Step 5: Solve for x
    x = 118,123,059.23/13,962.89
  6. Step 6: Final answer
    x = 8,459.79

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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.