Home / 18,687.16-28,035.06-10,902.52

Finding the Fourth Proportional to 18,687.16, 28,035.06 and 10,902.52

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Solution

The fourth proportional to 18,687.16, 28,035.06 and 10,902.52 is: 16,356.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687.16 : 28,035.06 = 10,902.52 : x
  2. Step 2: Convert to fraction form
    18,687.16/28,035.06 = 10,902.52/x
  3. Step 3: Cross multiply
    18,687.16x = 28,035.06 × 10,902.52
  4. Step 4: Simplify right side
    18,687.16x = 305,652,802.35
  5. Step 5: Solve for x
    x = 305,652,802.35/18,687.16
  6. Step 6: Final answer
    x = 16,356.30

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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.