Home / 13,333.10-19,987.76-6,755.90

Finding the Fourth Proportional to 13,333.10, 19,987.76 and 6,755.90

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Solution

The fourth proportional to 13,333.10, 19,987.76 and 6,755.90 is: 10,127.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.10 : 19,987.76 = 6,755.90 : x
  2. Step 2: Convert to fraction form
    13,333.10/19,987.76 = 6,755.90/x
  3. Step 3: Cross multiply
    13,333.10x = 19,987.76 × 6,755.90
  4. Step 4: Simplify right side
    13,333.10x = 135,035,224.73
  5. Step 5: Solve for x
    x = 135,035,224.73/13,333.10
  6. Step 6: Final answer
    x = 10,127.82

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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.