Home / 10,513.12-15,771.30-3,586

Finding the Fourth Proportional to 10,513.12, 15,771.30 and 3,586

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Solution

The fourth proportional to 10,513.12, 15,771.30 and 3,586 is: 5,379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.12 : 15,771.30 = 3,586 : x
  2. Step 2: Convert to fraction form
    10,513.12/15,771.30 = 3,586/x
  3. Step 3: Cross multiply
    10,513.12x = 15,771.30 × 3,586
  4. Step 4: Simplify right side
    10,513.12x = 56,555,881.80
  5. Step 5: Solve for x
    x = 56,555,881.80/10,513.12
  6. Step 6: Final answer
    x = 5,379.55

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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.