Home / 14,628.60-21,969.30-12,814.20

Finding the Fourth Proportional to 14,628.60, 21,969.30 and 12,814.20

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Solution

The fourth proportional to 14,628.60, 21,969.30 and 12,814.20 is: 19,244.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,628.60 : 21,969.30 = 12,814.20 : x
  2. Step 2: Convert to fraction form
    14,628.60/21,969.30 = 12,814.20/x
  3. Step 3: Cross multiply
    14,628.60x = 21,969.30 × 12,814.20
  4. Step 4: Simplify right side
    14,628.60x = 281,519,004.06
  5. Step 5: Solve for x
    x = 281,519,004.06/14,628.60
  6. Step 6: Final answer
    x = 19,244.43

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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.