Home / 15,630.98-21,569.90-8,556.03

Finding the Fourth Proportional to 15,630.98, 21,569.90 and 8,556.03

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Solution

The fourth proportional to 15,630.98, 21,569.90 and 8,556.03 is: 11,806.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.98 : 21,569.90 = 8,556.03 : x
  2. Step 2: Convert to fraction form
    15,630.98/21,569.90 = 8,556.03/x
  3. Step 3: Cross multiply
    15,630.98x = 21,569.90 × 8,556.03
  4. Step 4: Simplify right side
    15,630.98x = 184,552,668.72
  5. Step 5: Solve for x
    x = 184,552,668.72/15,630.98
  6. Step 6: Final answer
    x = 11,806.86

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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.