Home / 9,771.21-13,484.16-5,579.46

Finding the Fourth Proportional to 9,771.21, 13,484.16 and 5,579.46

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Solution

The fourth proportional to 9,771.21, 13,484.16 and 5,579.46 is: 7,699.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,771.21 : 13,484.16 = 5,579.46 : x
  2. Step 2: Convert to fraction form
    9,771.21/13,484.16 = 5,579.46/x
  3. Step 3: Cross multiply
    9,771.21x = 13,484.16 × 5,579.46
  4. Step 4: Simplify right side
    9,771.21x = 75,234,331.35
  5. Step 5: Solve for x
    x = 75,234,331.35/9,771.21
  6. Step 6: Final answer
    x = 7,699.59

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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.