Home / 13,489.61-18,630.18-10,268.54

Finding the Fourth Proportional to 13,489.61, 18,630.18 and 10,268.54

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Solution

The fourth proportional to 13,489.61, 18,630.18 and 10,268.54 is: 14,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.61 : 18,630.18 = 10,268.54 : x
  2. Step 2: Convert to fraction form
    13,489.61/18,630.18 = 10,268.54/x
  3. Step 3: Cross multiply
    13,489.61x = 18,630.18 × 10,268.54
  4. Step 4: Simplify right side
    13,489.61x = 191,304,748.54
  5. Step 5: Solve for x
    x = 191,304,748.54/13,489.61
  6. Step 6: Final answer
    x = 14,181.64

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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.