Home / 14,108.32-21,172.32-13,999.04

Finding the Fourth Proportional to 14,108.32, 21,172.32 and 13,999.04

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Solution

The fourth proportional to 14,108.32, 21,172.32 and 13,999.04 is: 21,008.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.32 : 21,172.32 = 13,999.04 : x
  2. Step 2: Convert to fraction form
    14,108.32/21,172.32 = 13,999.04/x
  3. Step 3: Cross multiply
    14,108.32x = 21,172.32 × 13,999.04
  4. Step 4: Simplify right side
    14,108.32x = 296,392,154.57
  5. Step 5: Solve for x
    x = 296,392,154.57/14,108.32
  6. Step 6: Final answer
    x = 21,008.32

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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.