Home / 14,655.23-20,224.21-7,940.90

Finding the Fourth Proportional to 14,655.23, 20,224.21 and 7,940.90

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Solution

The fourth proportional to 14,655.23, 20,224.21 and 7,940.90 is: 10,958.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,655.23 : 20,224.21 = 7,940.90 : x
  2. Step 2: Convert to fraction form
    14,655.23/20,224.21 = 7,940.90/x
  3. Step 3: Cross multiply
    14,655.23x = 20,224.21 × 7,940.90
  4. Step 4: Simplify right side
    14,655.23x = 160,598,429.19
  5. Step 5: Solve for x
    x = 160,598,429.19/14,655.23
  6. Step 6: Final answer
    x = 10,958.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.