Home / 7,838.74-10,818.39-4,694.86

Finding the Fourth Proportional to 7,838.74, 10,818.39 and 4,694.86

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Solution

The fourth proportional to 7,838.74, 10,818.39 and 4,694.86 is: 6,479.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838.74 : 10,818.39 = 4,694.86 : x
  2. Step 2: Convert to fraction form
    7,838.74/10,818.39 = 4,694.86/x
  3. Step 3: Cross multiply
    7,838.74x = 10,818.39 × 4,694.86
  4. Step 4: Simplify right side
    7,838.74x = 50,790,826.48
  5. Step 5: Solve for x
    x = 50,790,826.48/7,838.74
  6. Step 6: Final answer
    x = 6,479.46

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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.