Home / 13,918.12-20,887.45-10,230.29

Finding the Fourth Proportional to 13,918.12, 20,887.45 and 10,230.29

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Solution

The fourth proportional to 13,918.12, 20,887.45 and 10,230.29 is: 15,352.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.12 : 20,887.45 = 10,230.29 : x
  2. Step 2: Convert to fraction form
    13,918.12/20,887.45 = 10,230.29/x
  3. Step 3: Cross multiply
    13,918.12x = 20,887.45 × 10,230.29
  4. Step 4: Simplify right side
    13,918.12x = 213,684,670.86
  5. Step 5: Solve for x
    x = 213,684,670.86/13,918.12
  6. Step 6: Final answer
    x = 15,352.98

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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.