Home / 18,306.43-27,459.65-5,157.09

Finding the Fourth Proportional to 18,306.43, 27,459.65 and 5,157.09

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Solution

The fourth proportional to 18,306.43, 27,459.65 and 5,157.09 is: 7,735.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.43 : 27,459.65 = 5,157.09 : x
  2. Step 2: Convert to fraction form
    18,306.43/27,459.65 = 5,157.09/x
  3. Step 3: Cross multiply
    18,306.43x = 27,459.65 × 5,157.09
  4. Step 4: Simplify right side
    18,306.43x = 141,611,886.42
  5. Step 5: Solve for x
    x = 141,611,886.42/18,306.43
  6. Step 6: Final answer
    x = 7,735.64

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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.