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Finding the Fourth Proportional to 18,130.83, 27,188.52 and 7,035.45

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Solution

The fourth proportional to 18,130.83, 27,188.52 and 7,035.45 is: 10,550.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.83 : 27,188.52 = 7,035.45 : x
  2. Step 2: Convert to fraction form
    18,130.83/27,188.52 = 7,035.45/x
  3. Step 3: Cross multiply
    18,130.83x = 27,188.52 × 7,035.45
  4. Step 4: Simplify right side
    18,130.83x = 191,283,473.03
  5. Step 5: Solve for x
    x = 191,283,473.03/18,130.83
  6. Step 6: Final answer
    x = 10,550.18

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1.5x scale

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.