Home / 19,137.19-28,666.90-9,883.75

Finding the Fourth Proportional to 19,137.19, 28,666.90 and 9,883.75

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Solution

The fourth proportional to 19,137.19, 28,666.90 and 9,883.75 is: 14,805.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,137.19 : 28,666.90 = 9,883.75 : x
  2. Step 2: Convert to fraction form
    19,137.19/28,666.90 = 9,883.75/x
  3. Step 3: Cross multiply
    19,137.19x = 28,666.90 × 9,883.75
  4. Step 4: Simplify right side
    19,137.19x = 283,336,472.88
  5. Step 5: Solve for x
    x = 283,336,472.88/19,137.19
  6. Step 6: Final answer
    x = 14,805.54

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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.