Home / 11,815.43-16,305.29-6,510.20

Finding the Fourth Proportional to 11,815.43, 16,305.29 and 6,510.20

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Solution

The fourth proportional to 11,815.43, 16,305.29 and 6,510.20 is: 8,984.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.43 : 16,305.29 = 6,510.20 : x
  2. Step 2: Convert to fraction form
    11,815.43/16,305.29 = 6,510.20/x
  3. Step 3: Cross multiply
    11,815.43x = 16,305.29 × 6,510.20
  4. Step 4: Simplify right side
    11,815.43x = 106,150,658.19
  5. Step 5: Solve for x
    x = 106,150,658.19/11,815.43
  6. Step 6: Final answer
    x = 8,984.07

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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.