Home / 14,105.02-21,190.59-13,307.06

Finding the Fourth Proportional to 14,105.02, 21,190.59 and 13,307.06

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Solution

The fourth proportional to 14,105.02, 21,190.59 and 13,307.06 is: 19,991.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.02 : 21,190.59 = 13,307.06 : x
  2. Step 2: Convert to fraction form
    14,105.02/21,190.59 = 13,307.06/x
  3. Step 3: Cross multiply
    14,105.02x = 21,190.59 × 13,307.06
  4. Step 4: Simplify right side
    14,105.02x = 281,984,473.20
  5. Step 5: Solve for x
    x = 281,984,473.20/14,105.02
  6. Step 6: Final answer
    x = 19,991.78

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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.