Home / 8,997.21-12,416.21-5,222.63

Finding the Fourth Proportional to 8,997.21, 12,416.21 and 5,222.63

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Solution

The fourth proportional to 8,997.21, 12,416.21 and 5,222.63 is: 7,207.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,997.21 : 12,416.21 = 5,222.63 : x
  2. Step 2: Convert to fraction form
    8,997.21/12,416.21 = 5,222.63/x
  3. Step 3: Cross multiply
    8,997.21x = 12,416.21 × 5,222.63
  4. Step 4: Simplify right side
    8,997.21x = 64,845,182.64
  5. Step 5: Solve for x
    x = 64,845,182.64/8,997.21
  6. Step 6: Final answer
    x = 7,207.25

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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.