Home / 13,605.42-20,400.51-4,716.60

Finding the Fourth Proportional to 13,605.42, 20,400.51 and 4,716.60

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Solution

The fourth proportional to 13,605.42, 20,400.51 and 4,716.60 is: 7,072.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,605.42 : 20,400.51 = 4,716.60 : x
  2. Step 2: Convert to fraction form
    13,605.42/20,400.51 = 4,716.60/x
  3. Step 3: Cross multiply
    13,605.42x = 20,400.51 × 4,716.60
  4. Step 4: Simplify right side
    13,605.42x = 96,221,045.47
  5. Step 5: Solve for x
    x = 96,221,045.47/13,605.42
  6. Step 6: Final answer
    x = 7,072.26

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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.