Home / 15,548.85-21,456.23-8,834.58

Finding the Fourth Proportional to 15,548.85, 21,456.23 and 8,834.58

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Solution

The fourth proportional to 15,548.85, 21,456.23 and 8,834.58 is: 12,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.85 : 21,456.23 = 8,834.58 : x
  2. Step 2: Convert to fraction form
    15,548.85/21,456.23 = 8,834.58/x
  3. Step 3: Cross multiply
    15,548.85x = 21,456.23 × 8,834.58
  4. Step 4: Simplify right side
    15,548.85x = 189,556,736.26
  5. Step 5: Solve for x
    x = 189,556,736.26/15,548.85
  6. Step 6: Final answer
    x = 12,191.05

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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.