Home / 13,934.93-20,903.07-5,613.81

Finding the Fourth Proportional to 13,934.93, 20,903.07 and 5,613.81

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Solution

The fourth proportional to 13,934.93, 20,903.07 and 5,613.81 is: 8,420.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.93 : 20,903.07 = 5,613.81 : x
  2. Step 2: Convert to fraction form
    13,934.93/20,903.07 = 5,613.81/x
  3. Step 3: Cross multiply
    13,934.93x = 20,903.07 × 5,613.81
  4. Step 4: Simplify right side
    13,934.93x = 117,345,863.40
  5. Step 5: Solve for x
    x = 117,345,863.40/13,934.93
  6. Step 6: Final answer
    x = 8,420.99

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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.