Home / 14,343.21-21,509.96-4,980.76

Finding the Fourth Proportional to 14,343.21, 21,509.96 and 4,980.76

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Solution

The fourth proportional to 14,343.21, 21,509.96 and 4,980.76 is: 7,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343.21 : 21,509.96 = 4,980.76 : x
  2. Step 2: Convert to fraction form
    14,343.21/21,509.96 = 4,980.76/x
  3. Step 3: Cross multiply
    14,343.21x = 21,509.96 × 4,980.76
  4. Step 4: Simplify right side
    14,343.21x = 107,135,869.69
  5. Step 5: Solve for x
    x = 107,135,869.69/14,343.21
  6. Step 6: Final answer
    x = 7,469.45

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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.