Home / 13,285.72-19,943.70-6,719.32

Finding the Fourth Proportional to 13,285.72, 19,943.70 and 6,719.32

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Solution

The fourth proportional to 13,285.72, 19,943.70 and 6,719.32 is: 10,086.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.72 : 19,943.70 = 6,719.32 : x
  2. Step 2: Convert to fraction form
    13,285.72/19,943.70 = 6,719.32/x
  3. Step 3: Cross multiply
    13,285.72x = 19,943.70 × 6,719.32
  4. Step 4: Simplify right side
    13,285.72x = 134,008,102.28
  5. Step 5: Solve for x
    x = 134,008,102.28/13,285.72
  6. Step 6: Final answer
    x = 10,086.63

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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.