Home / 15,339.72-21,167.85-8,625.27

Finding the Fourth Proportional to 15,339.72, 21,167.85 and 8,625.27

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Solution

The fourth proportional to 15,339.72, 21,167.85 and 8,625.27 is: 11,902.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.72 : 21,167.85 = 8,625.27 : x
  2. Step 2: Convert to fraction form
    15,339.72/21,167.85 = 8,625.27/x
  3. Step 3: Cross multiply
    15,339.72x = 21,167.85 × 8,625.27
  4. Step 4: Simplify right side
    15,339.72x = 182,578,421.57
  5. Step 5: Solve for x
    x = 182,578,421.57/15,339.72
  6. Step 6: Final answer
    x = 11,902.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.