Home / 14,070.38-21,112.85-7,144.88

Finding the Fourth Proportional to 14,070.38, 21,112.85 and 7,144.88

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Solution

The fourth proportional to 14,070.38, 21,112.85 and 7,144.88 is: 10,721.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.38 : 21,112.85 = 7,144.88 : x
  2. Step 2: Convert to fraction form
    14,070.38/21,112.85 = 7,144.88/x
  3. Step 3: Cross multiply
    14,070.38x = 21,112.85 × 7,144.88
  4. Step 4: Simplify right side
    14,070.38x = 150,848,692.01
  5. Step 5: Solve for x
    x = 150,848,692.01/14,070.38
  6. Step 6: Final answer
    x = 10,721.01

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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.