Home / 10,513.36-15,765.48-5,581.92

Finding the Fourth Proportional to 10,513.36, 15,765.48 and 5,581.92

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Solution

The fourth proportional to 10,513.36, 15,765.48 and 5,581.92 is: 8,370.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.36 : 15,765.48 = 5,581.92 : x
  2. Step 2: Convert to fraction form
    10,513.36/15,765.48 = 5,581.92/x
  3. Step 3: Cross multiply
    10,513.36x = 15,765.48 × 5,581.92
  4. Step 4: Simplify right side
    10,513.36x = 88,001,648.12
  5. Step 5: Solve for x
    x = 88,001,648.12/10,513.36
  6. Step 6: Final answer
    x = 8,370.46

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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.