Home / 18,897.02-28,306.64-11,087

Finding the Fourth Proportional to 18,897.02, 28,306.64 and 11,087

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Solution

The fourth proportional to 18,897.02, 28,306.64 and 11,087 is: 16,607.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897.02 : 28,306.64 = 11,087 : x
  2. Step 2: Convert to fraction form
    18,897.02/28,306.64 = 11,087/x
  3. Step 3: Cross multiply
    18,897.02x = 28,306.64 × 11,087
  4. Step 4: Simplify right side
    18,897.02x = 313,835,717.68
  5. Step 5: Solve for x
    x = 313,835,717.68/18,897.02
  6. Step 6: Final answer
    x = 16,607.68

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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.