Home / 9,795.96-13,521.20-8,031.78

Finding the Fourth Proportional to 9,795.96, 13,521.20 and 8,031.78

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Solution

The fourth proportional to 9,795.96, 13,521.20 and 8,031.78 is: 11,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,795.96 : 13,521.20 = 8,031.78 : x
  2. Step 2: Convert to fraction form
    9,795.96/13,521.20 = 8,031.78/x
  3. Step 3: Cross multiply
    9,795.96x = 13,521.20 × 8,031.78
  4. Step 4: Simplify right side
    9,795.96x = 108,599,263.58
  5. Step 5: Solve for x
    x = 108,599,263.58/9,795.96
  6. Step 6: Final answer
    x = 11,086.13

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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.