Home / 14,409.12-19,887.12-13,752.48

Finding the Fourth Proportional to 14,409.12, 19,887.12 and 13,752.48

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Solution

The fourth proportional to 14,409.12, 19,887.12 and 13,752.48 is: 18,980.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,409.12 : 19,887.12 = 13,752.48 : x
  2. Step 2: Convert to fraction form
    14,409.12/19,887.12 = 13,752.48/x
  3. Step 3: Cross multiply
    14,409.12x = 19,887.12 × 13,752.48
  4. Step 4: Simplify right side
    14,409.12x = 273,497,220.06
  5. Step 5: Solve for x
    x = 273,497,220.06/14,409.12
  6. Step 6: Final answer
    x = 18,980.84

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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.