Home / 13,504.09-18,635.61-7,535.70

Finding the Fourth Proportional to 13,504.09, 18,635.61 and 7,535.70

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Solution

The fourth proportional to 13,504.09, 18,635.61 and 7,535.70 is: 10,399.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,504.09 : 18,635.61 = 7,535.70 : x
  2. Step 2: Convert to fraction form
    13,504.09/18,635.61 = 7,535.70/x
  3. Step 3: Cross multiply
    13,504.09x = 18,635.61 × 7,535.70
  4. Step 4: Simplify right side
    13,504.09x = 140,432,273.10
  5. Step 5: Solve for x
    x = 140,432,273.10/13,504.09
  6. Step 6: Final answer
    x = 10,399.24

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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.