Home / 12,883.20-17,783.04-7,577.76

Finding the Fourth Proportional to 12,883.20, 17,783.04 and 7,577.76

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Solution

The fourth proportional to 12,883.20, 17,783.04 and 7,577.76 is: 10,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.20 : 17,783.04 = 7,577.76 : x
  2. Step 2: Convert to fraction form
    12,883.20/17,783.04 = 7,577.76/x
  3. Step 3: Cross multiply
    12,883.20x = 17,783.04 × 7,577.76
  4. Step 4: Simplify right side
    12,883.20x = 134,755,609.19
  5. Step 5: Solve for x
    x = 134,755,609.19/12,883.20
  6. Step 6: Final answer
    x = 10,459.79

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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.