Home / 13,775.57-20,650.85-5,004.28

Finding the Fourth Proportional to 13,775.57, 20,650.85 and 5,004.28

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Solution

The fourth proportional to 13,775.57, 20,650.85 and 5,004.28 is: 7,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.57 : 20,650.85 = 5,004.28 : x
  2. Step 2: Convert to fraction form
    13,775.57/20,650.85 = 5,004.28/x
  3. Step 3: Cross multiply
    13,775.57x = 20,650.85 × 5,004.28
  4. Step 4: Simplify right side
    13,775.57x = 103,342,655.20
  5. Step 5: Solve for x
    x = 103,342,655.20/13,775.57
  6. Step 6: Final answer
    x = 7,501.88

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1.5x scale

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.