Home / 14,353.28-21,528.30-4,991.72

Finding the Fourth Proportional to 14,353.28, 21,528.30 and 4,991.72

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Solution

The fourth proportional to 14,353.28, 21,528.30 and 4,991.72 is: 7,487.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,353.28 : 21,528.30 = 4,991.72 : x
  2. Step 2: Convert to fraction form
    14,353.28/21,528.30 = 4,991.72/x
  3. Step 3: Cross multiply
    14,353.28x = 21,528.30 × 4,991.72
  4. Step 4: Simplify right side
    14,353.28x = 107,463,245.68
  5. Step 5: Solve for x
    x = 107,463,245.68/14,353.28
  6. Step 6: Final answer
    x = 7,487.02

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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.