Home / 14,211.72-19,607.40-8,241.21

Finding the Fourth Proportional to 14,211.72, 19,607.40 and 8,241.21

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Solution

The fourth proportional to 14,211.72, 19,607.40 and 8,241.21 is: 11,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,211.72 : 19,607.40 = 8,241.21 : x
  2. Step 2: Convert to fraction form
    14,211.72/19,607.40 = 8,241.21/x
  3. Step 3: Cross multiply
    14,211.72x = 19,607.40 × 8,241.21
  4. Step 4: Simplify right side
    14,211.72x = 161,588,700.95
  5. Step 5: Solve for x
    x = 161,588,700.95/14,211.72
  6. Step 6: Final answer
    x = 11,370.10

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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.