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Finding the Fourth Proportional to 18,010.70, 27,028.20 and 10,607.30

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Solution

The fourth proportional to 18,010.70, 27,028.20 and 10,607.30 is: 15,918.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,010.70 : 27,028.20 = 10,607.30 : x
  2. Step 2: Convert to fraction form
    18,010.70/27,028.20 = 10,607.30/x
  3. Step 3: Cross multiply
    18,010.70x = 27,028.20 × 10,607.30
  4. Step 4: Simplify right side
    18,010.70x = 286,696,225.86
  5. Step 5: Solve for x
    x = 286,696,225.86/18,010.70
  6. Step 6: Final answer
    x = 15,918.11

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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.