Home / 13,572.10-18,727.32-8,268.58

Finding the Fourth Proportional to 13,572.10, 18,727.32 and 8,268.58

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Solution

The fourth proportional to 13,572.10, 18,727.32 and 8,268.58 is: 11,409.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.10 : 18,727.32 = 8,268.58 : x
  2. Step 2: Convert to fraction form
    13,572.10/18,727.32 = 8,268.58/x
  3. Step 3: Cross multiply
    13,572.10x = 18,727.32 × 8,268.58
  4. Step 4: Simplify right side
    13,572.10x = 154,848,343.61
  5. Step 5: Solve for x
    x = 154,848,343.61/13,572.10
  6. Step 6: Final answer
    x = 11,409.31

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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.