Home / 14,420.21-19,899.89-8,132.59

Finding the Fourth Proportional to 14,420.21, 19,899.89 and 8,132.59

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Solution

The fourth proportional to 14,420.21, 19,899.89 and 8,132.59 is: 11,222.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.21 : 19,899.89 = 8,132.59 : x
  2. Step 2: Convert to fraction form
    14,420.21/19,899.89 = 8,132.59/x
  3. Step 3: Cross multiply
    14,420.21x = 19,899.89 × 8,132.59
  4. Step 4: Simplify right side
    14,420.21x = 161,837,646.42
  5. Step 5: Solve for x
    x = 161,837,646.42/14,420.21
  6. Step 6: Final answer
    x = 11,222.97

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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.