Home / 18,429.12-27,638.01-5,277.96

Finding the Fourth Proportional to 18,429.12, 27,638.01 and 5,277.96

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Solution

The fourth proportional to 18,429.12, 27,638.01 and 5,277.96 is: 7,915.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.12 : 27,638.01 = 5,277.96 : x
  2. Step 2: Convert to fraction form
    18,429.12/27,638.01 = 5,277.96/x
  3. Step 3: Cross multiply
    18,429.12x = 27,638.01 × 5,277.96
  4. Step 4: Simplify right side
    18,429.12x = 145,872,311.26
  5. Step 5: Solve for x
    x = 145,872,311.26/18,429.12
  6. Step 6: Final answer
    x = 7,915.32

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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.