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Finding the Fourth Proportional to 13,602.74, 18,773.22 and 7,634.45

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Solution

The fourth proportional to 13,602.74, 18,773.22 and 7,634.45 is: 10,536.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602.74 : 18,773.22 = 7,634.45 : x
  2. Step 2: Convert to fraction form
    13,602.74/18,773.22 = 7,634.45/x
  3. Step 3: Cross multiply
    13,602.74x = 18,773.22 × 7,634.45
  4. Step 4: Simplify right side
    13,602.74x = 143,323,242.05
  5. Step 5: Solve for x
    x = 143,323,242.05/13,602.74
  6. Step 6: Final answer
    x = 10,536.35

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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.