Home / 15,109.35-20,853.90-9,654.93

Finding the Fourth Proportional to 15,109.35, 20,853.90 and 9,654.93

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Solution

The fourth proportional to 15,109.35, 20,853.90 and 9,654.93 is: 13,325.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,109.35 : 20,853.90 = 9,654.93 : x
  2. Step 2: Convert to fraction form
    15,109.35/20,853.90 = 9,654.93/x
  3. Step 3: Cross multiply
    15,109.35x = 20,853.90 × 9,654.93
  4. Step 4: Simplify right side
    15,109.35x = 201,342,944.73
  5. Step 5: Solve for x
    x = 201,342,944.73/15,109.35
  6. Step 6: Final answer
    x = 13,325.72

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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.