Home / 7,816.42-10,785.21-4,671.94

Finding the Fourth Proportional to 7,816.42, 10,785.21 and 4,671.94

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Solution

The fourth proportional to 7,816.42, 10,785.21 and 4,671.94 is: 6,446.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.42 : 10,785.21 = 4,671.94 : x
  2. Step 2: Convert to fraction form
    7,816.42/10,785.21 = 4,671.94/x
  3. Step 3: Cross multiply
    7,816.42x = 10,785.21 × 4,671.94
  4. Step 4: Simplify right side
    7,816.42x = 50,387,854.01
  5. Step 5: Solve for x
    x = 50,387,854.01/7,816.42
  6. Step 6: Final answer
    x = 6,446.41

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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.