Home / 13,504.64-18,636.38-7,535.96

Finding the Fourth Proportional to 13,504.64, 18,636.38 and 7,535.96

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Solution

The fourth proportional to 13,504.64, 18,636.38 and 7,535.96 is: 10,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,504.64 : 18,636.38 = 7,535.96 : x
  2. Step 2: Convert to fraction form
    13,504.64/18,636.38 = 7,535.96/x
  3. Step 3: Cross multiply
    13,504.64x = 18,636.38 × 7,535.96
  4. Step 4: Simplify right side
    13,504.64x = 140,442,883.36
  5. Step 5: Solve for x
    x = 140,442,883.36/13,504.64
  6. Step 6: Final answer
    x = 10,399.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.