Home / 8,411.29-11,615.42-5,272.94

Finding the Fourth Proportional to 8,411.29, 11,615.42 and 5,272.94

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Solution

The fourth proportional to 8,411.29, 11,615.42 and 5,272.94 is: 7,281.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,411.29 : 11,615.42 = 5,272.94 : x
  2. Step 2: Convert to fraction form
    8,411.29/11,615.42 = 5,272.94/x
  3. Step 3: Cross multiply
    8,411.29x = 11,615.42 × 5,272.94
  4. Step 4: Simplify right side
    8,411.29x = 61,247,454.96
  5. Step 5: Solve for x
    x = 61,247,454.96/8,411.29
  6. Step 6: Final answer
    x = 7,281.58

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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.