Home / 9,450.32-13,011.70-8,031.20

Finding the Fourth Proportional to 9,450.32, 13,011.70 and 8,031.20

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Solution

The fourth proportional to 9,450.32, 13,011.70 and 8,031.20 is: 11,057.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,450.32 : 13,011.70 = 8,031.20 : x
  2. Step 2: Convert to fraction form
    9,450.32/13,011.70 = 8,031.20/x
  3. Step 3: Cross multiply
    9,450.32x = 13,011.70 × 8,031.20
  4. Step 4: Simplify right side
    9,450.32x = 104,499,565.04
  5. Step 5: Solve for x
    x = 104,499,565.04/9,450.32
  6. Step 6: Final answer
    x = 11,057.78

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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.