Home / 15,453.30-21,321.97-10,426.84

Finding the Fourth Proportional to 15,453.30, 21,321.97 and 10,426.84

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Solution

The fourth proportional to 15,453.30, 21,321.97 and 10,426.84 is: 14,386.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.30 : 21,321.97 = 10,426.84 : x
  2. Step 2: Convert to fraction form
    15,453.30/21,321.97 = 10,426.84/x
  3. Step 3: Cross multiply
    15,453.30x = 21,321.97 × 10,426.84
  4. Step 4: Simplify right side
    15,453.30x = 222,320,769.67
  5. Step 5: Solve for x
    x = 222,320,769.67/15,453.30
  6. Step 6: Final answer
    x = 14,386.62

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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.