Home / 8,415.92-11,614.19-4,639.29

Finding the Fourth Proportional to 8,415.92, 11,614.19 and 4,639.29

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Solution

The fourth proportional to 8,415.92, 11,614.19 and 4,639.29 is: 6,402.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.92 : 11,614.19 = 4,639.29 : x
  2. Step 2: Convert to fraction form
    8,415.92/11,614.19 = 4,639.29/x
  3. Step 3: Cross multiply
    8,415.92x = 11,614.19 × 4,639.29
  4. Step 4: Simplify right side
    8,415.92x = 53,881,572.33
  5. Step 5: Solve for x
    x = 53,881,572.33/8,415.92
  6. Step 6: Final answer
    x = 6,402.34

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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.