Home / 13,740.99-20,613.10-4,377.75

Finding the Fourth Proportional to 13,740.99, 20,613.10 and 4,377.75

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Solution

The fourth proportional to 13,740.99, 20,613.10 and 4,377.75 is: 6,567.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.99 : 20,613.10 = 4,377.75 : x
  2. Step 2: Convert to fraction form
    13,740.99/20,613.10 = 4,377.75/x
  3. Step 3: Cross multiply
    13,740.99x = 20,613.10 × 4,377.75
  4. Step 4: Simplify right side
    13,740.99x = 90,238,998.53
  5. Step 5: Solve for x
    x = 90,238,998.53/13,740.99
  6. Step 6: Final answer
    x = 6,567.14

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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.