Home / 8,513.10-12,765.78-3,580.07

Finding the Fourth Proportional to 8,513.10, 12,765.78 and 3,580.07

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Solution

The fourth proportional to 8,513.10, 12,765.78 and 3,580.07 is: 5,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513.10 : 12,765.78 = 3,580.07 : x
  2. Step 2: Convert to fraction form
    8,513.10/12,765.78 = 3,580.07/x
  3. Step 3: Cross multiply
    8,513.10x = 12,765.78 × 3,580.07
  4. Step 4: Simplify right side
    8,513.10x = 45,702,322.18
  5. Step 5: Solve for x
    x = 45,702,322.18/8,513.10
  6. Step 6: Final answer
    x = 5,368.47

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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.