Home / 19,140-26,416.04-11,186.61

Finding the Fourth Proportional to 19,140, 26,416.04 and 11,186.61

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Solution

The fourth proportional to 19,140, 26,416.04 and 11,186.61 is: 15,439.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140 : 26,416.04 = 11,186.61 : x
  2. Step 2: Convert to fraction form
    19,140/26,416.04 = 11,186.61/x
  3. Step 3: Cross multiply
    19,140x = 26,416.04 × 11,186.61
  4. Step 4: Simplify right side
    19,140x = 295,505,881.29
  5. Step 5: Solve for x
    x = 295,505,881.29/19,140
  6. Step 6: Final answer
    x = 15,439.18

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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.