Home / 14,213.45-21,305.27-7,964.30

Finding the Fourth Proportional to 14,213.45, 21,305.27 and 7,964.30

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Solution

The fourth proportional to 14,213.45, 21,305.27 and 7,964.30 is: 11,938.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,213.45 : 21,305.27 = 7,964.30 : x
  2. Step 2: Convert to fraction form
    14,213.45/21,305.27 = 7,964.30/x
  3. Step 3: Cross multiply
    14,213.45x = 21,305.27 × 7,964.30
  4. Step 4: Simplify right side
    14,213.45x = 169,681,475.25
  5. Step 5: Solve for x
    x = 169,681,475.25/14,213.45
  6. Step 6: Final answer
    x = 11,938.10

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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.