Home / 7,639.92-10,542.69-4,807.89

Finding the Fourth Proportional to 7,639.92, 10,542.69 and 4,807.89

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Solution

The fourth proportional to 7,639.92, 10,542.69 and 4,807.89 is: 6,634.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.92 : 10,542.69 = 4,807.89 : x
  2. Step 2: Convert to fraction form
    7,639.92/10,542.69 = 4,807.89/x
  3. Step 3: Cross multiply
    7,639.92x = 10,542.69 × 4,807.89
  4. Step 4: Simplify right side
    7,639.92x = 50,688,093.82
  5. Step 5: Solve for x
    x = 50,688,093.82/7,639.92
  6. Step 6: Final answer
    x = 6,634.64

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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.