Home / 8,835.91-13,248.86-2,911.21

Finding the Fourth Proportional to 8,835.91, 13,248.86 and 2,911.21

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Solution

The fourth proportional to 8,835.91, 13,248.86 and 2,911.21 is: 4,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835.91 : 13,248.86 = 2,911.21 : x
  2. Step 2: Convert to fraction form
    8,835.91/13,248.86 = 2,911.21/x
  3. Step 3: Cross multiply
    8,835.91x = 13,248.86 × 2,911.21
  4. Step 4: Simplify right side
    8,835.91x = 38,570,166.04
  5. Step 5: Solve for x
    x = 38,570,166.04/8,835.91
  6. Step 6: Final answer
    x = 4,365.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.