Home / 14,189.10-21,283.65-12,734.70

Finding the Fourth Proportional to 14,189.10, 21,283.65 and 12,734.70

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Solution

The fourth proportional to 14,189.10, 21,283.65 and 12,734.70 is: 19,102.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.10 : 21,283.65 = 12,734.70 : x
  2. Step 2: Convert to fraction form
    14,189.10/21,283.65 = 12,734.70/x
  3. Step 3: Cross multiply
    14,189.10x = 21,283.65 × 12,734.70
  4. Step 4: Simplify right side
    14,189.10x = 271,040,897.66
  5. Step 5: Solve for x
    x = 271,040,897.66/14,189.10
  6. Step 6: Final answer
    x = 19,102.05

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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.