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Finding the Fourth Proportional to 13,594, 18,791.12 and 11,342.76

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Solution

The fourth proportional to 13,594, 18,791.12 and 11,342.76 is: 15,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,594 : 18,791.12 = 11,342.76 : x
  2. Step 2: Convert to fraction form
    13,594/18,791.12 = 11,342.76/x
  3. Step 3: Cross multiply
    13,594x = 18,791.12 × 11,342.76
  4. Step 4: Simplify right side
    13,594x = 213,143,164.29
  5. Step 5: Solve for x
    x = 213,143,164.29/13,594
  6. Step 6: Final answer
    x = 15,679.21

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Double scale
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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.