Home / 14,187.48-21,294.33-7,172.43

Finding the Fourth Proportional to 14,187.48, 21,294.33 and 7,172.43

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Solution

The fourth proportional to 14,187.48, 21,294.33 and 7,172.43 is: 10,765.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.48 : 21,294.33 = 7,172.43 : x
  2. Step 2: Convert to fraction form
    14,187.48/21,294.33 = 7,172.43/x
  3. Step 3: Cross multiply
    14,187.48x = 21,294.33 × 7,172.43
  4. Step 4: Simplify right side
    14,187.48x = 152,732,091.32
  5. Step 5: Solve for x
    x = 152,732,091.32/14,187.48
  6. Step 6: Final answer
    x = 10,765.27

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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.