Home / 14,164.40-21,237.48-12,190.63

Finding the Fourth Proportional to 14,164.40, 21,237.48 and 12,190.63

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Solution

The fourth proportional to 14,164.40, 21,237.48 and 12,190.63 is: 18,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,164.40 : 21,237.48 = 12,190.63 : x
  2. Step 2: Convert to fraction form
    14,164.40/21,237.48 = 12,190.63/x
  3. Step 3: Cross multiply
    14,164.40x = 21,237.48 × 12,190.63
  4. Step 4: Simplify right side
    14,164.40x = 258,898,260.81
  5. Step 5: Solve for x
    x = 258,898,260.81/14,164.40
  6. Step 6: Final answer
    x = 18,278.10

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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.