Home / 13,619.76-20,505.36-10,674.36

Finding the Fourth Proportional to 13,619.76, 20,505.36 and 10,674.36

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Solution

The fourth proportional to 13,619.76, 20,505.36 and 10,674.36 is: 16,070.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.76 : 20,505.36 = 10,674.36 : x
  2. Step 2: Convert to fraction form
    13,619.76/20,505.36 = 10,674.36/x
  3. Step 3: Cross multiply
    13,619.76x = 20,505.36 × 10,674.36
  4. Step 4: Simplify right side
    13,619.76x = 218,881,594.57
  5. Step 5: Solve for x
    x = 218,881,594.57/13,619.76
  6. Step 6: Final answer
    x = 16,070.88

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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.