Home / 13,330.72-19,988.34-4,563.28

Finding the Fourth Proportional to 13,330.72, 19,988.34 and 4,563.28

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Solution

The fourth proportional to 13,330.72, 19,988.34 and 4,563.28 is: 6,842.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.72 : 19,988.34 = 4,563.28 : x
  2. Step 2: Convert to fraction form
    13,330.72/19,988.34 = 4,563.28/x
  3. Step 3: Cross multiply
    13,330.72x = 19,988.34 × 4,563.28
  4. Step 4: Simplify right side
    13,330.72x = 91,212,392.16
  5. Step 5: Solve for x
    x = 91,212,392.16/13,330.72
  6. Step 6: Final answer
    x = 6,842.27

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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.