Home / 9,309.16-12,836.13-6,786.82

Finding the Fourth Proportional to 9,309.16, 12,836.13 and 6,786.82

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Solution

The fourth proportional to 9,309.16, 12,836.13 and 6,786.82 is: 9,358.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.16 : 12,836.13 = 6,786.82 : x
  2. Step 2: Convert to fraction form
    9,309.16/12,836.13 = 6,786.82/x
  3. Step 3: Cross multiply
    9,309.16x = 12,836.13 × 6,786.82
  4. Step 4: Simplify right side
    9,309.16x = 87,116,503.81
  5. Step 5: Solve for x
    x = 87,116,503.81/9,309.16
  6. Step 6: Final answer
    x = 9,358.15

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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.