Home / 7,815.11-10,783.13-4,626.82

Finding the Fourth Proportional to 7,815.11, 10,783.13 and 4,626.82

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Solution

The fourth proportional to 7,815.11, 10,783.13 and 4,626.82 is: 6,383.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.11 : 10,783.13 = 4,626.82 : x
  2. Step 2: Convert to fraction form
    7,815.11/10,783.13 = 4,626.82/x
  3. Step 3: Cross multiply
    7,815.11x = 10,783.13 × 4,626.82
  4. Step 4: Simplify right side
    7,815.11x = 49,891,551.45
  5. Step 5: Solve for x
    x = 49,891,551.45/7,815.11
  6. Step 6: Final answer
    x = 6,383.99

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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.