Home / 14,165.10-21,247.65-12,634.20

Finding the Fourth Proportional to 14,165.10, 21,247.65 and 12,634.20

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Solution

The fourth proportional to 14,165.10, 21,247.65 and 12,634.20 is: 18,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,165.10 : 21,247.65 = 12,634.20 : x
  2. Step 2: Convert to fraction form
    14,165.10/21,247.65 = 12,634.20/x
  3. Step 3: Cross multiply
    14,165.10x = 21,247.65 × 12,634.20
  4. Step 4: Simplify right side
    14,165.10x = 268,447,059.63
  5. Step 5: Solve for x
    x = 268,447,059.63/14,165.10
  6. Step 6: Final answer
    x = 18,951.30

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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.