Home / 14,161.60-21,239.56-13,459.06

Finding the Fourth Proportional to 14,161.60, 21,239.56 and 13,459.06

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Solution

The fourth proportional to 14,161.60, 21,239.56 and 13,459.06 is: 20,185.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,161.60 : 21,239.56 = 13,459.06 : x
  2. Step 2: Convert to fraction form
    14,161.60/21,239.56 = 13,459.06/x
  3. Step 3: Cross multiply
    14,161.60x = 21,239.56 × 13,459.06
  4. Step 4: Simplify right side
    14,161.60x = 285,864,512.41
  5. Step 5: Solve for x
    x = 285,864,512.41/14,161.60
  6. Step 6: Final answer
    x = 20,185.89

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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.