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Finding the Fourth Proportional to 13,009.48, 17,941.16 and 8,695.04

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Solution

The fourth proportional to 13,009.48, 17,941.16 and 8,695.04 is: 11,991.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.48 : 17,941.16 = 8,695.04 : x
  2. Step 2: Convert to fraction form
    13,009.48/17,941.16 = 8,695.04/x
  3. Step 3: Cross multiply
    13,009.48x = 17,941.16 × 8,695.04
  4. Step 4: Simplify right side
    13,009.48x = 155,999,103.85
  5. Step 5: Solve for x
    x = 155,999,103.85/13,009.48
  6. Step 6: Final answer
    x = 11,991.19

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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.