Home / 13,268.79-19,867.68-7,015.86

Finding the Fourth Proportional to 13,268.79, 19,867.68 and 7,015.86

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Solution

The fourth proportional to 13,268.79, 19,867.68 and 7,015.86 is: 10,505.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.79 : 19,867.68 = 7,015.86 : x
  2. Step 2: Convert to fraction form
    13,268.79/19,867.68 = 7,015.86/x
  3. Step 3: Cross multiply
    13,268.79x = 19,867.68 × 7,015.86
  4. Step 4: Simplify right side
    13,268.79x = 139,388,861.40
  5. Step 5: Solve for x
    x = 139,388,861.40/13,268.79
  6. Step 6: Final answer
    x = 10,505.02

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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.