Home / 18,897.33-28,307.11-11,087.31

Finding the Fourth Proportional to 18,897.33, 28,307.11 and 11,087.31

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Solution

The fourth proportional to 18,897.33, 28,307.11 and 11,087.31 is: 16,608.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897.33 : 28,307.11 = 11,087.31 : x
  2. Step 2: Convert to fraction form
    18,897.33/28,307.11 = 11,087.31/x
  3. Step 3: Cross multiply
    18,897.33x = 28,307.11 × 11,087.31
  4. Step 4: Simplify right side
    18,897.33x = 313,849,703.77
  5. Step 5: Solve for x
    x = 313,849,703.77/18,897.33
  6. Step 6: Final answer
    x = 16,608.15

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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.