Home / 14,085.68-21,133.16-5,321.36

Finding the Fourth Proportional to 14,085.68, 21,133.16 and 5,321.36

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Solution

The fourth proportional to 14,085.68, 21,133.16 and 5,321.36 is: 7,983.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.68 : 21,133.16 = 5,321.36 : x
  2. Step 2: Convert to fraction form
    14,085.68/21,133.16 = 5,321.36/x
  3. Step 3: Cross multiply
    14,085.68x = 21,133.16 × 5,321.36
  4. Step 4: Simplify right side
    14,085.68x = 112,457,152.30
  5. Step 5: Solve for x
    x = 112,457,152.30/14,085.68
  6. Step 6: Final answer
    x = 7,983.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.