Home / 13,179.24-19,857.74-10,890.45

Finding the Fourth Proportional to 13,179.24, 19,857.74 and 10,890.45

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Solution

The fourth proportional to 13,179.24, 19,857.74 and 10,890.45 is: 16,409.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.24 : 19,857.74 = 10,890.45 : x
  2. Step 2: Convert to fraction form
    13,179.24/19,857.74 = 10,890.45/x
  3. Step 3: Cross multiply
    13,179.24x = 19,857.74 × 10,890.45
  4. Step 4: Simplify right side
    13,179.24x = 216,259,670.13
  5. Step 5: Solve for x
    x = 216,259,670.13/13,179.24
  6. Step 6: Final answer
    x = 16,409.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.