Home / 26,513.87-39,783.75-12,475.30

Finding the Fourth Proportional to 26,513.87, 39,783.75 and 12,475.30

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Solution

The fourth proportional to 26,513.87, 39,783.75 and 12,475.30 is: 18,719.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,513.87 : 39,783.75 = 12,475.30 : x
  2. Step 2: Convert to fraction form
    26,513.87/39,783.75 = 12,475.30/x
  3. Step 3: Cross multiply
    26,513.87x = 39,783.75 × 12,475.30
  4. Step 4: Simplify right side
    26,513.87x = 496,314,122.21
  5. Step 5: Solve for x
    x = 496,314,122.21/26,513.87
  6. Step 6: Final answer
    x = 18,719.04

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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.