Home / 11,213.48-16,820.21-9,770.06

Finding the Fourth Proportional to 11,213.48, 16,820.21 and 9,770.06

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Solution

The fourth proportional to 11,213.48, 16,820.21 and 9,770.06 is: 14,655.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.48 : 16,820.21 = 9,770.06 : x
  2. Step 2: Convert to fraction form
    11,213.48/16,820.21 = 9,770.06/x
  3. Step 3: Cross multiply
    11,213.48x = 16,820.21 × 9,770.06
  4. Step 4: Simplify right side
    11,213.48x = 164,334,327.96
  5. Step 5: Solve for x
    x = 164,334,327.96/11,213.48
  6. Step 6: Final answer
    x = 14,655.08

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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.