Home / 8,215.70-11,337.77-4,678.92

Finding the Fourth Proportional to 8,215.70, 11,337.77 and 4,678.92

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Solution

The fourth proportional to 8,215.70, 11,337.77 and 4,678.92 is: 6,456.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.70 : 11,337.77 = 4,678.92 : x
  2. Step 2: Convert to fraction form
    8,215.70/11,337.77 = 4,678.92/x
  3. Step 3: Cross multiply
    8,215.70x = 11,337.77 × 4,678.92
  4. Step 4: Simplify right side
    8,215.70x = 53,048,518.81
  5. Step 5: Solve for x
    x = 53,048,518.81/8,215.70
  6. Step 6: Final answer
    x = 6,456.97

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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.