Home / 13,984.31-20,948.76-9,057.39

Finding the Fourth Proportional to 13,984.31, 20,948.76 and 9,057.39

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Solution

The fourth proportional to 13,984.31, 20,948.76 and 9,057.39 is: 13,568.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984.31 : 20,948.76 = 9,057.39 : x
  2. Step 2: Convert to fraction form
    13,984.31/20,948.76 = 9,057.39/x
  3. Step 3: Cross multiply
    13,984.31x = 20,948.76 × 9,057.39
  4. Step 4: Simplify right side
    13,984.31x = 189,741,089.34
  5. Step 5: Solve for x
    x = 189,741,089.34/13,984.31
  6. Step 6: Final answer
    x = 13,568.15

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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.