Home / 15,450.40-21,321.42-8,737.34

Finding the Fourth Proportional to 15,450.40, 21,321.42 and 8,737.34

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Solution

The fourth proportional to 15,450.40, 21,321.42 and 8,737.34 is: 12,057.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,450.40 : 21,321.42 = 8,737.34 : x
  2. Step 2: Convert to fraction form
    15,450.40/21,321.42 = 8,737.34/x
  3. Step 3: Cross multiply
    15,450.40x = 21,321.42 × 8,737.34
  4. Step 4: Simplify right side
    15,450.40x = 186,292,527.28
  5. Step 5: Solve for x
    x = 186,292,527.28/15,450.40
  6. Step 6: Final answer
    x = 12,057.46

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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.