Home / 13,617.63-20,427.70-5,298.27

Finding the Fourth Proportional to 13,617.63, 20,427.70 and 5,298.27

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Solution

The fourth proportional to 13,617.63, 20,427.70 and 5,298.27 is: 7,947.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.63 : 20,427.70 = 5,298.27 : x
  2. Step 2: Convert to fraction form
    13,617.63/20,427.70 = 5,298.27/x
  3. Step 3: Cross multiply
    13,617.63x = 20,427.70 × 5,298.27
  4. Step 4: Simplify right side
    13,617.63x = 108,231,470.08
  5. Step 5: Solve for x
    x = 108,231,470.08/13,617.63
  6. Step 6: Final answer
    x = 7,947.89

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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.