Home / 13,898.56-20,840.28-5,012.68

Finding the Fourth Proportional to 13,898.56, 20,840.28 and 5,012.68

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Solution

The fourth proportional to 13,898.56, 20,840.28 and 5,012.68 is: 7,516.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,898.56 : 20,840.28 = 5,012.68 : x
  2. Step 2: Convert to fraction form
    13,898.56/20,840.28 = 5,012.68/x
  3. Step 3: Cross multiply
    13,898.56x = 20,840.28 × 5,012.68
  4. Step 4: Simplify right side
    13,898.56x = 104,465,654.75
  5. Step 5: Solve for x
    x = 104,465,654.75/13,898.56
  6. Step 6: Final answer
    x = 7,516.29

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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.