Home / 19,261.85-28,864.35-8,735.09

Finding the Fourth Proportional to 19,261.85, 28,864.35 and 8,735.09

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Solution

The fourth proportional to 19,261.85, 28,864.35 and 8,735.09 is: 13,089.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,261.85 : 28,864.35 = 8,735.09 : x
  2. Step 2: Convert to fraction form
    19,261.85/28,864.35 = 8,735.09/x
  3. Step 3: Cross multiply
    19,261.85x = 28,864.35 × 8,735.09
  4. Step 4: Simplify right side
    19,261.85x = 252,132,695.04
  5. Step 5: Solve for x
    x = 252,132,695.04/19,261.85
  6. Step 6: Final answer
    x = 13,089.74

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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.