Home / 9,142.18-13,720.48-4,699.68

Finding the Fourth Proportional to 9,142.18, 13,720.48 and 4,699.68

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Solution

The fourth proportional to 9,142.18, 13,720.48 and 4,699.68 is: 7,053.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,142.18 : 13,720.48 = 4,699.68 : x
  2. Step 2: Convert to fraction form
    9,142.18/13,720.48 = 4,699.68/x
  3. Step 3: Cross multiply
    9,142.18x = 13,720.48 × 4,699.68
  4. Step 4: Simplify right side
    9,142.18x = 64,481,865.45
  5. Step 5: Solve for x
    x = 64,481,865.45/9,142.18
  6. Step 6: Final answer
    x = 7,053.23

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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.