Home / 13,830.24-19,086.14-8,453.56

Finding the Fourth Proportional to 13,830.24, 19,086.14 and 8,453.56

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Solution

The fourth proportional to 13,830.24, 19,086.14 and 8,453.56 is: 11,666.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.24 : 19,086.14 = 8,453.56 : x
  2. Step 2: Convert to fraction form
    13,830.24/19,086.14 = 8,453.56/x
  3. Step 3: Cross multiply
    13,830.24x = 19,086.14 × 8,453.56
  4. Step 4: Simplify right side
    13,830.24x = 161,345,829.66
  5. Step 5: Solve for x
    x = 161,345,829.66/13,830.24
  6. Step 6: Final answer
    x = 11,666.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.