Home / 7,814.86-10,785.24-4,670.98

Finding the Fourth Proportional to 7,814.86, 10,785.24 and 4,670.98

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Solution

The fourth proportional to 7,814.86, 10,785.24 and 4,670.98 is: 6,446.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.86 : 10,785.24 = 4,670.98 : x
  2. Step 2: Convert to fraction form
    7,814.86/10,785.24 = 4,670.98/x
  3. Step 3: Cross multiply
    7,814.86x = 10,785.24 × 4,670.98
  4. Step 4: Simplify right side
    7,814.86x = 50,377,640.34
  5. Step 5: Solve for x
    x = 50,377,640.34/7,814.86
  6. Step 6: Final answer
    x = 6,446.39

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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.