Home / 14,259.60-21,365.10-12,169.80

Finding the Fourth Proportional to 14,259.60, 21,365.10 and 12,169.80

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Solution

The fourth proportional to 14,259.60, 21,365.10 and 12,169.80 is: 18,233.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,259.60 : 21,365.10 = 12,169.80 : x
  2. Step 2: Convert to fraction form
    14,259.60/21,365.10 = 12,169.80/x
  3. Step 3: Cross multiply
    14,259.60x = 21,365.10 × 12,169.80
  4. Step 4: Simplify right side
    14,259.60x = 260,008,993.98
  5. Step 5: Solve for x
    x = 260,008,993.98/14,259.60
  6. Step 6: Final answer
    x = 18,233.96

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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.