Home / 13,613.07-20,410.01-5,286.15

Finding the Fourth Proportional to 13,613.07, 20,410.01 and 5,286.15

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Solution

The fourth proportional to 13,613.07, 20,410.01 and 5,286.15 is: 7,925.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.07 : 20,410.01 = 5,286.15 : x
  2. Step 2: Convert to fraction form
    13,613.07/20,410.01 = 5,286.15/x
  3. Step 3: Cross multiply
    13,613.07x = 20,410.01 × 5,286.15
  4. Step 4: Simplify right side
    13,613.07x = 107,890,347.93
  5. Step 5: Solve for x
    x = 107,890,347.93/13,613.07
  6. Step 6: Final answer
    x = 7,925.50

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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.